The Evolution and Impact of PIL Jurisprudence in India

When a journalist reads a newspaper report about thousands of prisoners rotting in Bihar jails – many imprisoned longer than their maximum sentence – and decides to take the matter to the Supreme Court, something fundamental has shifted in how justice works. That journalist was Kapila Hingorani, and the case she filed in 1979, Hussainara Khatoon v. State of Bihar, is widely regarded as the first recorded instance of Public Interest Litigation (PIL) in India. It was the moment Indian courts stepped out of their traditional role and became active participants in delivering justice to those who could not seek it themselves. Understanding how that shift happened – procedurally and substantively – is essential for anyone studying Indian constitutional law or preparing a PIL petition today.

The traditional system PIL displaced 🔗

Before PIL took root, Indian courts followed the strict common law doctrine of locus standi – the principle that only a person directly and personally aggrieved by a legal wrong could approach the court for a remedy. As The Mandamus notes, this adversarial model presupposed that litigation was a private contest between two parties, and the courts were passive umpires. This procedural barrier, combined with the high cost of litigation and widespread legal illiteracy, effectively locked out the vast majority of India’s population – particularly marginalized communities – from accessing constitutional remedies that were theoretically guaranteed to them.

The result was a deep disconnect. India’s Constitution promised social, economic, and political justice in its Preamble, and Part III guaranteed fundamental rights to every citizen. Yet those most likely to suffer violations of those rights – bonded laborers, undertrial prisoners, slum dwellers, tribal communities – had no practical means of enforcing them. As iPleaders explains, in S.P. Gupta v. Union of India (1981), the Supreme Court explicitly acknowledged that a large number of exploited and legally ignorant persons in India were simply not in a position to approach the court for judicial remedy. Something had to give.

The procedural revolution: rewriting the rules of access 🔗

Relaxing locus standi 🔗

The most consequential procedural shift PIL introduced was the dismantling of the rigid locus standi requirement. In S.P. Gupta v. Union of India (1981) – the case that formally defined PIL in the Indian context – the Supreme Court held that any member of the public acting in good faith could approach the court for redressal of a public wrong or enforcement of fundamental rights, even without personal injury. The Law Advice describes this as a defining moment: the court opened its doors to public-spirited individuals and organizations filing on behalf of those who lacked the voice or resources to do so themselves.

Justice P.N. Bhagwati, who authored the judgment, argued that a rigid insistence on traditional locus standi would reduce constitutional rights to what he called a “teasing illusion” for the majority of Indians. The court’s obligation, he held, was to democratize judicial remedies and make constitutional promises a living reality. This reframing transformed locus standi from a technical legal hurdle into a substantive question of access to justice.

The evolution was gradual. As Lawgical Shots traces, the relaxation began on a case-by-case basis – first in Mumbai Kamgar Sabha v. Abdulbhai Faizullabhai (1976), where a union was allowed to file on behalf of workers, and then in Akhil Bhartiya Soshit Karmachari Sangh v. Union of India (1980), where even an unregistered association was permitted to file a writ petition. By the time S.P. Gupta was decided, the relaxation was fully institutionalized as a general principle.

From adversarial to inquisitorial 🔗

PIL also transformed how courts conduct proceedings. The traditional adversarial model – where two opposing parties present their cases and the judge acts as a neutral referee – was effectively supplemented by an inquisitorial approach in PIL matters. As Wikipedia’s entry on PIL explains, PIL is inquisitorial in nature, permitting judges to directly participate in the fact-finding process rather than passively receiving what parties choose to present.

This shift is visible in several practical features. Courts in PIL matters routinely appoint amicus curiae (friends of the court) and expert commissions to investigate ground conditions independently. They issue interim directions and then continue monitoring compliance through periodic status reports. The litigation does not conclude with a single judgment; the court often supervises implementation for years. This ongoing supervisory role is qualitatively different from the court’s function in ordinary private litigation.

Epistolary jurisdiction: letters as petitions 🔗

Perhaps the most radical procedural innovation is epistolary jurisdiction – the practice of treating letters, postcards, or even newspaper reports as writ petitions. The Mandamus describes this as a remarkable departure from all conventional legal procedure. In Miss Veena Sethi v. State of Bihar (1982), the Supreme Court treated a letter sent by a Free Legal Aid Committee as a writ petition. In another instance, the court entertained a letter from two Delhi University professors seeking enforcement of the constitutional rights of inmates living in inhuman conditions at a protective home in Agra. The first PIL itself, in Hussainara Khatoon, arose from a newspaper report rather than a formal petition filed by an aggrieved individual.

The Supreme Court later formalized this through guidelines – first framed in 1988 and revised in 1993 and 2003 – specifying the categories of letters and petitions that would be entertained. These include complaints about exploitation of workers, prison conditions, bonded labor, and custodial deaths, among others. The nominal court fees in PIL proceedings further reinforce the accessibility that epistolary jurisdiction symbolizes.

The substantive scope of PIL jurisprudence 🔗

PIL’s procedural flexibility opened the door to a vast range of substantive issues that courts had never engaged with before. The breadth of this engagement is best understood through the landmark cases that shaped it.

Labour rights and bonded labour 🔗

The early phase of PIL was dominated by labour rights cases. In People’s Union for Democratic Rights v. Union of India (1982), the court intervened to address labour exploitation at construction sites – workers paid below minimum wages in inhuman conditions – holding that a violation of any provision of labour law constitutes a violation of the right to live with dignity under Article 21. Then in Bandhua Mukti Morcha v. Union of India (1984), the Supreme Court under Justice Bhagwati issued comprehensive directives for the release of bonded labourers, better implementation of labour laws, and rehabilitation measures. This case marked a turning point: the judiciary signaled it could go beyond declaring rights and actively direct the state to remedy structural injustices.

Environmental protection 🔗

No discussion of PIL jurisprudence is complete without M.C. Mehta. Advocate M.C. Mehta filed a series of PILs on environmental issues – Ganga river pollution, industrial pollution in Delhi, hazardous industries near the Taj Mahal – that resulted in some of the most significant environmental regulations in Indian history. These cases established the “Polluter Pays” principle in Indian law and pushed the courts into the domain of sustainable development policy. In the earlier Rural Litigation Entitlement Kendra v. State of Uttar Pradesh (1985), the Supreme Court accepted a letter as a PIL concerning illegal mining in the Mussoorie Hills – India’s first environmental PIL – and ordered a halt to the operations, demonstrating how even informal communication could trigger major judicial intervention.

Gender justice and workplace safety 🔗

The 1997 judgment in Vishaka v. State of Rajasthan stands as one of PIL’s most consequential contributions to gender justice. Filed after the brutal gang rape of social worker Bhanwari Devi, who faced systemic obstacles when she tried to seek justice, the case resulted in the Supreme Court laying down the Vishaka Guidelines – a comprehensive framework for preventing sexual harassment at the workplace, to be treated as binding law until Parliament enacted legislation. This judgment directly influenced the enactment of the Sexual Harassment of Women at Workplace (Prevention, Prohibition and Redressal) Act, 2013. It illustrated how PIL could fill legislative gaps when the state had failed to act.

Right to life and livelihood 🔗

In Olga Tellis v. Bombay Municipal Corporation (1985), the Supreme Court recognized the right to livelihood as an integral part of the right to life under Article 21. The case, filed on behalf of pavement dwellers facing eviction, expanded the constitutional understanding of what it means to “live” – not merely to survive biologically, but to sustain a dignified existence. This interpretive expansion of Article 21 became one of PIL’s most enduring doctrinal contributions, later underpinning judicial interventions on food security, healthcare, and housing.

Undertrial prisoners and the right to speedy trial 🔗

Hussainara Khatoon v. State of Bihar (1979) remains the foundational case. As the Supreme Court Observer recounts, Justice Bhagwati accepted the habeas corpus petition filed by advocate Kapila Hingorani – not on behalf of any individual but for all undertrial prisoners in Bihar who had served beyond their maximum possible sentence. The court immediately ordered the release of 70 such prisoners, and its eventual directions led to the release of nearly 40,000 undertrials across India. The case established the right to a speedy trial as a fundamental right under Article 21 and stressed the state’s obligation to provide free legal aid.

The court’s evolving and contested role 🔗

PIL transformed the Supreme Court from a forum for resolving private disputes into an active participant in national governance. Cambridge University Press’s analysis of the Court’s transformation notes that through PIL, the Indian Court asserted itself as a champion of the rule of law in the 1980s, eventually taking on a central role in domains once exclusively belonging to the executive and legislature – judicial appointments, environmental policy, affirmative action, education, and development.

This expansion has attracted legitimate criticism. The loosening of locus standi led to a flood of PILs, many with little genuine public interest. The Supreme Court itself coined the phrase “publicity interest litigation” to describe filings motivated by personal or political gain rather than public welfare. In State of Uttaranchal v. Balwant Singh Chaufal (2010), the court laid down guidelines to prevent misuse – including verification of the petitioner’s credentials and the authenticity of the public interest claimed. It also sanctioned exemplary costs as a deterrent against frivolous petitions and instructed High Courts to be more selective in admission. As the Supreme Court Observer observes in its assessment of PIL at 75 years, the original social justice promise of PIL has sometimes given way to a confused and contested jurisprudence, as the court struggled to distinguish genuine public interest from motivated litigation.

The safeguards that emerged – requiring petitioners to act in good faith, excluding “meddlesome interlopers” and those pursuing personal gain, and limiting standing to those acting bona fide – reflect the court’s ongoing effort to preserve PIL’s integrity without returning to the exclusionary rigidity of traditional locus standi. The balance remains delicate, and PIL jurisprudence continues to evolve with each generation of cases.

What PIL jurisprudence means for practitioners today 🔗

For law students and legal practitioners preparing PIL petitions, the jurisprudential evolution carries practical implications. The constitutional foundation – Article 32 in the Supreme Court and Article 226 in the High Courts – remains unchanged. But the cases discussed above establish that courts will scrutinize whether there is genuine public interest, whether the petitioner is acting bona fide, and whether the petition raises violations of fundamental rights or constitutional provisions rather than policy disagreements. PIL is not a tool to challenge government decisions simply because one disagrees with them; it is a mechanism for enforcing rights that the state has failed to protect, particularly for those who cannot protect themselves.

The substantive reach of PIL – from prison conditions in 1979 to transgender rights in NALSA v. Union of India (2014), from Ganga pollution to food security – demonstrates that courts have been willing to engage with virtually every domain of public life where fundamental rights are at stake. What has remained constant is the underlying premise Justice Bhagwati articulated in S.P. Gupta: that constitutional justice cannot be a privilege accessible only to those with resources, legal knowledge, and the ability to navigate formal procedures. PIL remains the procedural and doctrinal mechanism that keeps that premise alive.

What do you think? PIL has allowed courts to fill legislative gaps and enforce rights for those who cannot advocate for themselves – but it has also led to concerns about judicial overreach and misuse. Where should the line be drawn between meaningful judicial activism and interference with executive or legislative functions? And with the rise of frivolous PILs clogging court dockets, do existing safeguards go far enough, or does PIL need more structural reform to protect its original purpose?

References

1. https://themandamus.com/judicial-review/the-dilution-of-locus-standi-public-interest-litigation-and-the-global-quest-for-constitutional-justice/
2. https://blog.ipleaders.in/principle-of-locus-standi/
3. https://www.thelawadvice.com/articles/public-interest-litigation-pil-in-india-a-legal-revolution
4. https://lawgicalshots.com/public-interest-litigation-pil-and-locus-standi/
5. https://en.wikipedia.org/wiki/Public_interest_litigation_in_India
6. https://backedbylaw.in/post/public-interest-litigation-pil-in-india-history-evolution-features-key-cases
7. https://blog.ipleaders.in/philosophical-basis-public-interest-india-concept-scope-locus-standi/
8. https://www.scobserver.in/journal/the-story-of-the-pil/
9. https://www.cambridge.org/core/books/abs/consequential-courts/public-interest-litigation-and-the-transformation-of-the-supreme-court-of-india/E78EFB8BED73C661C0CA9426F51B1E1D
10. https://www.scobserver.in/75-years-of-sc/what-a-jagged-little-pil-the-peoples-court-at-75/
11. https://foxmandal.in/public-interest-litigation-a-knight-in-the-shining-armour/
12. https://legislative.gov.in/constitution-of-india