Before 1978, Article 21 of the Constitution offered very limited protection. The Supreme Court in A.K. Gopalan (1950) had held that any law enacted by Parliament satisfied Article 21 — no matter how arbitrary or unjust that law was. This meant citizens had no protection against unfair State action, as long as there was a statute authorising it.

Maneka Gandhi changed this entirely. The Supreme Court held that "procedure established by law" must itself be just, fair and reasonable. No law that restricts personal liberty can escape scrutiny under Articles 14 and 19. This ruling — known as the golden triangle doctrine — is the foundation of virtually every fundamental right that citizens exercise today.

Understanding this case is not just an academic exercise. It is the entry point to Indian constitutional law. Every argument about the right to privacy, the right to dignity, the right to livelihood, and the right against arbitrary State action traces its roots here.

The judgment was delivered in January 1978, less than a year after India's Emergency (1975–1977) ended. During the Emergency, fundamental rights were suspended and thousands were detained without trial. Courts had limited ability to offer relief. When the Janata Party came to power in March 1977, the political atmosphere demanded a reassertion of constitutional values.

Maneka Gandhi — a journalist — held an Indian passport. In July 1977, the Government of India impounded her passport under Section 10(3)(c) of the Passports Act, 1967. The stated ground was "public interest." No reason was given. She was not informed of the basis for this action. She was not given any opportunity to present her case before the order was passed.

She challenged the impoundment before the Supreme Court. Her argument was that impounding the passport without any hearing and without disclosing reasons violated her rights under Article 21 (right to life and personal liberty), Article 14 (equality before law), and Article 19(1)(a) and (g) (freedom of speech and to practise any profession).

The Government's position was straightforward: Section 10(3)(c) is a valid law enacted by Parliament. Article 21 only requires a "procedure established by law" — and since a law existed, Article 21 was satisfied. There was no requirement that the procedure be "fair."

The Court directed the Government to give Maneka Gandhi an opportunity to make representations before passing a final order on impoundment. On the broader constitutional question, the majority held in favour of the petitioner on all substantive issues. Beg CJ and Kailasam J dissented on the factual question of whether the impoundment was justified, but the constitutional principles were accepted by all seven judges.

The Court held that "personal liberty" in Article 21 has the widest amplitude. It cannot be limited to freedom from physical detention. The right to travel abroad is a facet of personal liberty — restricting it without fair procedure violates Article 21. The narrow interpretation in A.K. Gopalan was effectively overruled on this point.

This is the most significant contribution of the case. The Court held that these three articles are not mutually exclusive. Any law that takes away life or liberty under Article 21 must simultaneously pass three tests:

The Constituent Assembly had chosen "procedure established by law" over "due process of law" (the American standard) deliberately. However, the Court held that "procedure" cannot mean any procedure — it must be one that is right, just and fair. This effectively introduced substantive due process into Indian constitutional law through interpretation, without amending the text.

The principles of natural justice — the right to be heard (audi alteram partem) and the rule against bias (nemo judex in causa sua) — are embedded within the concept of a fair procedure under Article 21. An order passed without hearing the affected party cannot be "procedure established by law" in the constitutional sense.

Justices Bhagwati and Krishna Iyer gave an expansive reading to "life" itself. It is not limited to animal existence — it includes the right to live with human dignity and all that contributes to a dignified life. This observation laid the groundwork for later recognition of rights to livelihood, health, shelter and education within Article 21.

Vishaka is the case that established, for the first time in Indian law, that sexual harassment at the workplace is not merely an act of individual misconduct — it is a violation of the fundamental rights of working women under Articles 14, 15, 19(1)(g) and 21 of the Constitution.

Before Vishaka, there was no definition of sexual harassment in Indian law, no mandatory complaints mechanism, no employer obligation to prevent harassment, and no protection for complainants. Women who complained often faced consequences worse than the harassment itself. The Court recognised this vacuum and used its constitutional authority to fill it.

The case is also a landmark in judicial use of international law. The Court relied on the CEDAW Convention to interpret the content of fundamental rights — an approach that has influenced Indian constitutional jurisprudence ever since.

Bhanwari Devi was a sathin — a grassroots social worker employed under the Rajasthan Government's Women Development Project. In September 1992, she attempted to prevent a child marriage in her village, as required by her duties under the programme. Despite her protests, the marriage was performed.

As an act of revenge, five men including a dominant-caste landlord gang-raped Bhanwari Devi in front of her husband. The local police delayed registering the complaint and the medical examination. When the Sessions Court at Jaipur delivered its verdict in November 1995, all five accused were acquitted. The acquittal reasoning was criticised as reflecting caste and gender prejudice.

The acquittal prompted several women's rights NGOs — collectively described as "Vishaka" — to file a Public Interest Litigation before the Supreme Court. Their petition raised a question beyond Bhanwari Devi's case: in the complete absence of legislation, what legal framework protects working women from sexual harassment? The Court agreed to address this larger constitutional question.

Before Vishaka, the only relevant provisions were Sections 354 and 509 IPC — dealing with outraging the modesty of a woman — with inadequate definitions and minor punishments. There was no employer obligation, no institutional mechanism, and no remedial framework. The Court recognised that this vacuum amounted to a failure of the State's positive obligation to protect fundamental rights.

The Court held that international conventions ratified by India — particularly the Convention on Elimination of All Forms of Discrimination Against Women (CEDAW, 1979, ratified 1993) — must be read into the content of fundamental rights where domestic law is silent. Article 11 of CEDAW specifically protects against sexual harassment at the workplace. This was a significant jurisprudential step — using international treaty obligations to expand constitutional rights.

The Court defined sexual harassment to include: physical contact and advances; demand or request for sexual favours; sexually coloured remarks; showing pornography; and any other unwelcome physical, verbal or non-verbal conduct of a sexual nature. This definition was later incorporated into the POSH Act 2013 with minor modifications.

Navtej Singh Johar is a landmark for two reasons. First, it decriminalised consensual same-sex conduct between adults — ending a 157-year colonial legacy of treating LGBTQ+ persons as criminals. Second, it established the concept of constitutional morality as a distinct standard that must prevail over social or majoritarian morality. This principle has far-reaching implications beyond LGBTQ+ rights — it governs every case where the rights of a minority are pitted against majority opinion.

The case also produced some of the most cited phrases in recent Indian constitutional law — including Justice Malhotra's declaration that "history owes an apology" to the LGBTQ+ community. These are not merely rhetorical flourishes — they reflect the Court's recognition that constitutional rights exist precisely to protect individuals against the majority.

Section 377 IPC was enacted in 1861, drafted as part of Thomas Macaulay's Indian Penal Code. It criminalised "carnal intercourse against the order of nature" — a phrase rooted in Victorian-era morality and Catholic natural law theology. Maximum punishment: life imprisonment, or up to ten years plus fine. British India retained this law long after Britain itself decriminalised homosexuality (Sexual Offences Act, 1967). India kept Section 377 for over five additional decades after that.

In 2001, the Naz Foundation filed a PIL before the Delhi High Court seeking reading down of Section 377. In 2009, the Delhi HC in Naz Foundation v. Govt. NCT Delhi held that Section 377, to the extent it criminalised consensual adult same-sex conduct, violated Articles 14, 15 and 21. This was celebrated as a historic step.

However, in December 2013, the Supreme Court in Suresh Kumar Koushal v. Naz Foundation reversed the Delhi HC. The Court held that Section 377 did not violate the Constitution and that LGBTQ+ persons formed a "minuscule minority" — a reasoning widely criticised as legally unsound, since the protection of fundamental rights is not diminished by the smallness of the affected group.

In 2016, Navtej Singh Johar — a prominent classical dancer — along with athletes, chefs, hoteliers and others filed writ petitions challenging the correctness of Koushal. The Supreme Court referred the matter to a five-judge Constitution Bench, which delivered its judgment on 6 September 2018.

The Chief Justice's opinion held that sexual orientation is an essential attribute of identity. To criminalise a person for who they are — rather than for what they do to others — is fundamentally incompatible with the constitutional guarantee of dignity. The State cannot intrude into the intimate choices of consenting adults in private. Section 377 was held to violate Articles 14, 15, 19 and 21.

The most philosophically significant opinion. Justice Chandrachud held that constitutional courts are counter-majoritarian institutions — their function is precisely to protect minority rights from majoritarian excess. When the values embedded in the Constitution (constitutional morality) conflict with popular opinion (social morality), constitutional morality must prevail. He called Koushal a "retrograde step" that misappreciated constitutional fundamentals.

He also held that sexual orientation is immutable — it is not a choice, but an aspect of identity over which individuals have no control. Criminalising an immutable identity trait is manifestly arbitrary under Article 14 and violates the right to privacy (Puttaswamy) which explicitly covers sexual orientation.

Section 377 was rooted in Victorian morality — a moral framework that even Victorian Britain had since abandoned. Nariman J held that the colonial origin of the provision and its basis in unreason and prejudice is itself a reason to subject it to constitutional scrutiny. Under Article 14, a provision without rational basis is manifestly arbitrary and unconstitutional.

Justice Indu Malhotra, the only woman on the bench, wrote the shortest but perhaps most emotionally resonant opinion: "History owes an apology to the members of this community and their families, for the delay in providing redressal for the ignominy and ostracism that they have suffered through the centuries." She held that the classification under Section 377 had no rational nexus to any legitimate State purpose.

The Puttaswamy judgment is the most important constitutional ruling since Maneka Gandhi (1978). It settled a question that had been left open for over six decades: does the Indian Constitution protect privacy as a fundamental right? The answer — unanimously given by nine judges — transformed not just the law of privacy but the entire framework of individual rights in India.

The case has immediate practical consequences. It is the constitutional foundation for India's Digital Personal Data Protection Act 2023. It directly enabled the Navtej Singh Johar judgment (2018) which read down Section 377. It provides the framework for challenging surveillance programmes, mandatory data collection, and intrusive State action of all kinds.

More broadly, it affirms that the Constitution protects not only what citizens do in public, but who they are in private — their intimate choices, their personal information, their digital footprint, and their right to be left alone.

Justice K.S. Puttaswamy, a retired Karnataka High Court judge, filed a writ petition in 2012 challenging the Aadhaar scheme — India's biometric identification system that collects fingerprints, iris scans and demographic data from Indian residents. His argument: mandatory collection and storage of biometric data violates the right to privacy.

The Union of India's response was legally remarkable: it argued that privacy is not a fundamental right under the Indian Constitution. It relied on two older judgments — M.P. Sharma (1954, 8-judge bench) and Kharak Singh (1962, 6-judge bench) — both of which had held that privacy was not constitutionally guaranteed.

A three-judge bench hearing the case recognised that this argument, if accepted, would have enormous consequences for all fundamental rights cases. It referred the preliminary question — whether privacy is a fundamental right — to a nine-judge Constitution Bench, the largest convened in India in many years.

In M.P. Sharma v. Satish Chandra (1954), an eight-judge bench had held there is no right to privacy akin to the American Fourth Amendment. In Kharak Singh v. State of UP (1962), a six-judge bench had held privacy is not a guaranteed fundamental right — though three judges dissented, arguing it was implicit in Article 21. Both needed to be reconsidered.

The Court identified six distinct dimensions of the right to privacy:

Shreya Singhal is the definitive statement on freedom of speech in the digital age in India. It established that the constitutional guarantee of free speech under Article 19(1)(a) applies as much to online expression as to offline speech — and that the government cannot use vague, overbroad terms like "grossly offensive" or "annoyance" to criminalise the expression of views, however unpopular.

The case introduced two concepts of lasting importance. First, the chilling effect doctrine — a law is unconstitutional not just when it is used to punish lawful speech but when its very existence deters people from exercising their rights out of fear. Second, the Discussion-Advocacy-Incitement framework — a clear classification of speech that remains the baseline for any free speech analysis in India.

The case also has a cautionary dimension: studies have shown that Section 66A continues to be applied by police in FIRs even years after it was struck down — highlighting the gap between constitutional adjudication and ground-level implementation.

Section 66A of the Information Technology Act, 2000 (inserted by amendment in 2008) criminalised sending any message through a computer or communication device that was: (a) grossly offensive or menacing in character; (b) false and sent to cause annoyance, inconvenience, danger, obstruction, insult, injury, criminal intimidation, enmity, hatred or ill will; or (c) sent to cause annoyance or inconvenience. Maximum punishment: three years imprisonment. The offence was cognizable and non-bailable — police could arrest without a warrant and bail was not a matter of right.

In November 2012, Shaheen Dhada posted a Facebook status questioning why Mumbai had been shut down after the death of Bal Thackeray, the Shiv Sena founder. Her friend Rinu Srinivasan liked the post. Both were arrested under Section 66A. Shaheen's uncle's clinic was vandalised. The police, instead of protecting the women, treated them as the offenders.

The arrests provoked national outrage and demonstrated exactly how Section 66A was being misused — as a tool to silence political criticism and dissent through criminal prosecution. Shreya Singhal, then a 21-year-old student at Delhi University's Faculty of Law, was outraged and filed a PIL challenging the constitutional validity of Section 66A. Over 60 petitions from across India were clubbed together.

Section 66A was routinely used to arrest cartoonists for political satire, professors for forwarding messages, journalists for critical reporting, and ordinary citizens for posts expressing dissatisfaction with politicians. In every case, someone in power was "annoyed" by the speech — and that was enough for an arrest under the vague provision.

Nariman J drew a principled distinction between three categories of speech, which remains the foundational framework for free speech analysis in India:

The Court found Section 66A vague on multiple grounds: "grossly offensive" has no objective standard; "menacing character" is undefined; "annoyance" and "inconvenience" are completely subjective; and the provision required no intent to harm. The provision could cover virtually any expression of dissent. This made it unconstitutionally overbroad — going far beyond the permissible grounds in Article 19(2).

The Court recognised that the vagueness of Section 66A, combined with the police's power to arrest without warrant, created a chilling effect on free speech. Even persons whose expression was clearly constitutional would self-censor out of fear of prosecution. A law that operates by deterrence — not just by direct punishment — can violate Article 19(1)(a) as much as one that directly punishes speech.

Section 69A (website blocking by government order) was upheld because it required written, reasoned orders on grounds within Article 19(2), and had review mechanisms. Section 79 (intermediary liability exemption) was upheld but read down: the safe harbour applies only when the intermediary has actual knowledge of unlawful content through a court order or government directive — not merely constructive knowledge.

Olga Tellis is one of the most human cases the Supreme Court has decided. Its importance lies not just in the legal principle it established, but in who it was decided for — the hundreds of thousands of Indians who live on pavements, in slums, with no formal address, no property title, and no political voice.

The case established that the right to life in Article 21 includes the right to livelihood. The reasoning is direct: a person deprived of their means of earning is effectively deprived of life itself. To take away someone's home — which is also their place of work, their address, their connection to the city's economy — is to take away their life in a meaningful constitutional sense.

This ruling placed socio-economic rights — which India's Constitution does not explicitly guarantee — within the ambit of justiciable fundamental rights. It has since been used to protect street vendors, manual labourers, slum dwellers and all those whose survival depends on their physical presence in a particular location.

By the early 1980s, Bombay had one of the largest urban poor populations in the world. Hundreds of thousands of migrants — from across Maharashtra and other states — had settled on pavements, occupying footpaths, roadsides and open spaces across the city. They were not squatters by choice — they had come to Bombay for work, but could not afford housing. The pavement was home, shelter, and the base from which they accessed the city's labour market each day.

In 1981, the Bombay Municipal Corporation, acting under the Bombay Municipal Corporation Act, issued orders for the eviction of pavement dwellers. The State Government supported the eviction. No alternative shelter was offered. No individual notice was given. No opportunity to be heard was provided. The eviction was to be immediate and total.

Olga Tellis, a prominent journalist, along with pavement dwellers and journalists, filed a Public Interest Litigation before the Supreme Court. Their core argument: evicting pavement dwellers from their homes and places of work deprives them of their right to life and livelihood under Article 21. The case raised a profound constitutional question — does the Constitution protect only those who have formal legal titles to property, or does it extend to all persons, including the poorest?

The Court did not immediately stop the eviction. Instead, it directed that: (1) no eviction shall take place without 30 days' prior notice; (2) the Municipal Commissioner must personally certify the eviction; (3) dwellers shall be relocated to sites on the city's periphery where possible. This was a balanced order — recognising the right while acknowledging the State's legitimate interest in keeping public spaces clear.

Chandrachud CJ reasoned that the right to life and the right to livelihood are inseparably connected: "An equally important facet of that right is the right to livelihood because, no person can live without the means of living, that is, the means of livelihood. If the right to livelihood is not treated as a part of the constitutional right to life, the easiest way of depriving a person of his right to life would be to deprive him of his means of livelihood to the point of abrogation."

The Court drew directly on Maneka Gandhi (1978) — which had held that Article 21 includes the right to live with human dignity and all that contributes to it. The Court held that livelihood — the means of maintaining life — is clearly within this expanded understanding of "life."

Applying Maneka Gandhi's natural justice requirement, the Court held that pavement dwellers must be given a prior hearing before eviction. Even though they have no formal legal right to occupy public land, the magnitude of the consequences — loss of home and livelihood — requires procedural protection under Article 21.

ADM Jabalpur is studied not as a positive authority — it was overruled — but because it teaches the most important lesson in constitutional law: even courts can fail democracy. When the Emergency was declared in 1975, the judiciary was the last check on executive power. In ADM Jabalpur, the Supreme Court — by a 4:1 majority — surrendered that check.

The case matters for what the majority did, what Justice Khanna alone refused to do, and what the Supreme Court eventually did in 2017 to correct this historical wrong. It is a study in judicial heroism, judicial failure, and constitutional redemption.

On 25 June 1975, Prime Minister Indira Gandhi declared an Internal Emergency under Article 352 of the Constitution. The declaration was based on the finding that the security of India was threatened by "internal disturbances." Thousands of political opponents, journalists, activists and ordinary citizens were arrested under the Maintenance of Internal Security Act (MISA) — preventive detention without trial, without reasons, and for indefinite periods.

The President issued an Order under Article 359, suspending the right of any person to move any court for enforcement of Articles 14, 21 and 22 during the Emergency. The Government's position: not only were these rights suspended but courts had no jurisdiction to entertain habeas corpus petitions — even to inquire whether a detention was authorised by law.

High Courts across India were flooded with habeas corpus petitions by or on behalf of detained persons. Most High Courts held that despite the Presidential Order, courts retained jurisdiction to at least examine whether the detention was authorised by MISA. When these cases reached the Supreme Court, the question was starkly posed: do citizens retain ANY judicial remedy for their liberty during the Emergency?

The four majority judges held that the Presidential Order under Article 359 had the legal effect of removing the court's jurisdiction entirely. Since the right to enforce Article 21 was suspended, courts had no power to examine any aspect of the detention — not even whether it was authorised by MISA. This was a literal, textual reading of Article 359.

Justice H.R. Khanna held that even during the Emergency, the right to life cannot be taken away without the authority of law. He drew a fundamental distinction: the suspension of the right to enforce Article 21 in courts does not mean the government can arbitrarily deprive a person of life. A detention without legal authority is unlawful whether or not Article 21 is suspended — because legality of detention can be challenged on statutory, not constitutional, grounds.

Khanna J knew the consequences of his dissent. He was the senior-most judge after the Chief Justice — expected to be the next Chief Justice of India. After his dissent, the Government superseded him and appointed a more junior judge as Chief Justice. Khanna J resigned rather than continue. His dissent cost him the highest judicial office in India.

In Puttaswamy (2017), D.Y. Chandrachud J — whose father Y.V. Chandrachud had been in the majority in ADM Jabalpur — wrote that "the decision in ADM Jabalpur was an aberration in the constitutional history of India" and that "the dissenting judgment of Justice Khanna is a sentinel of constitutional freedoms."

Custodial torture and deaths in police lock-ups were a persistent and largely unpunished reality in India when D.K. Basu was decided. Arrested persons — particularly those from marginalised communities — were subjected to beatings, torture and degrading treatment with near-total impunity. The police had enormous power over a person from the moment of arrest, with few practical constraints.

D.K. Basu changed the legal architecture of arrest in India. By issuing eleven specific, enforceable guidelines — drawing on Article 21 and international human rights norms — the Court created a framework of rights for every arrested person from the moment of custody. These guidelines are now codified in the CrPC (and its successor, the BNSS 2023), making them statutory requirements that police must follow on pain of contempt and liability.

In August 1986, D.K. Basu — the Executive Chairman of the Legal Aid Services organisation in West Bengal — wrote a letter to the Chief Justice of India drawing attention to news reports about deaths in police custody and lock-ups in West Bengal. He requested that the matter be treated as a Public Interest Litigation and that appropriate directions be issued.

The Supreme Court treated the letter as a writ petition under Article 32. The case was adjourned multiple times to collect information from all State Governments about cases of custodial deaths and the steps taken to address them. Simultaneously, another matter — Ashok K. Johri v. State of UP — involving a similar issue was clubbed with D.K. Basu.

By 1996, the Court had data from across India confirming a pattern of custodial violence that was widespread, systematic and largely unpunished. The Court decided to address the issue structurally — issuing guidelines that would apply nationwide.

The Court issued eleven requirements that must be followed in every case of arrest or detention:

India's criminal justice system has one of the world's highest proportions of undertrial prisoners — persons held in jail who have not been convicted of any offence and are awaiting trial. At the time of Hussainara Khatoon, this situation had reached crisis proportions in Bihar and other states.

Hussainara Khatoon established that prolonged undertrial detention without trial is a violation of Article 21. The right to a speedy trial is not merely a statutory right — it is a constitutional guarantee. This principle has been the foundation of every subsequent undertrial reform in India, including the enactment of Section 436A CrPC (now Section 479 BNSS) which gives undertrials who have served half the maximum sentence the right to bail.

The case also marked the beginning of PIL as a tool for prison reform — Advocate Pushpa Kapila Hingorani, who filed it, is credited as the "Mother of PIL" in India for this and subsequent cases on undertrial conditions.

In 1979, Advocate Pushpa Kapila Hingorani came across news reports — published in the Indian Express — about the shocking conditions of undertrial prisoners in Bihar jails. The reports documented cases where persons accused of petty offences (theft, minor assaults, vagrancy) had been in jail for three, four, five or even more years — waiting for their trials to begin. In many cases, even if convicted, the maximum sentence they could receive was far less than the time they had already spent in jail.

Hussainara Khatoon was one such undertrial — a woman imprisoned in Bihar awaiting trial for an offence whose maximum sentence was far shorter than her actual time in custody. Hingorani filed a habeas corpus petition on her behalf before the Supreme Court, challenging the legality of continued detention without trial.

The Supreme Court, recognising the systemic nature of the problem, treated the petition as a representative PIL covering all undertrial prisoners in Bihar who had been detained for excessively long periods without trial.

Bhagwati J held that Article 21's protection of personal liberty must include a right to have one's guilt or innocence determined within a reasonable time. An accused person who cannot get bail and is confined in jail awaiting trial is deprived of personal liberty — and that deprivation must be justified by reasonable procedure. Indefinite imprisonment without trial is not reasonable procedure.

The Court firmly rejected the State's argument that resource constraints excuse delay: "The State cannot avoid its constitutional obligation to provide speedy trial to the accused by pleading financial or administrative inability." This is significant — the Court held that constitutional rights impose positive obligations on the State, not just negative ones (merely refraining from action).

The Court ordered the immediate release of undertrial prisoners who had been in jail for periods exceeding the maximum sentence for their alleged offences. This was a direct and drastic remedy — using Article 32 to order release without waiting for the normal trial process. The Court also directed State governments to take steps to expedite trials and review undertrial populations in jails.

In companion judgments (Hussainara Khatoon II and III), the Court held that the right to free legal aid is also a fundamental right under Article 21 — a person who cannot afford a lawyer must be provided one by the State in cases involving potential imprisonment. This led to the establishment of legal aid systems across India.