Key Features of Public Interest Litigation: Bridging Justice and the Marginalized

India’s justice system has long grappled with a fundamental contradiction: constitutional rights exist on paper for every citizen, yet millions living in poverty, illiteracy, or social disadvantage simply cannot afford to knock on a court’s door. Public Interest Litigation (PIL) was born to close that gap. What makes PIL truly remarkable, however, is not just its purpose but the specific legal features that make it work – features that radically departed from the way courts had always operated in India.

Standing beyond the aggrieved party: relaxing locus standi 🔗

In conventional litigation, only the person whose rights have been directly violated can approach a court. This requirement – called locus standi – was a formidable barrier for those too poor, illiterate, or powerless to file a case. PIL dismantled this barrier entirely.

In the landmark ruling of S.P. Gupta v. Union of India (1981), Justice P.N. Bhagwati held that any bonafide member of the public, or a social action group, could invoke the writ jurisdiction of the Supreme Court or High Courts on behalf of those who could not approach the court themselves due to poverty, social disadvantage, or any other disability. This was a seismic shift. A journalist, an advocate, an NGO, or any public-spirited individual could now set the wheels of constitutional justice in motion for someone they had never met.

As the Supreme Court clarified in Janata Dal v. H.S. Chaudhary (1993), PIL is a legal action initiated for the enforcement of public interest where a class of the community has rights or liabilities affected – not just a single aggrieved individual. The “centre of gravity of justice,” as the court put it in Municipal Council, Ratlam v. Vardichand, had shifted from individual vindication to community welfare.

Epistolary jurisdiction: a letter is enough 🔗

Perhaps the most distinctive feature of PIL in India is what Justice V.R. Krishna Iyer first called epistolary jurisdiction – the power of the Supreme Court to treat a simple letter addressed to a judge as a full writ petition. The term was first used in Fertilizer Corporation Kamgar Union v. Union of India (1981), where the court held that procedural formalities had to be relaxed to meet the ends of justice.

The practical implication is significant. A prisoner, a bonded labourer, or a village resident with no legal knowledge and no money for a lawyer can write a letter to the Chief Justice of India describing a rights violation – and the court can treat that letter as a writ petition and take action. The Supreme Court of India has officially recognised that letters, telegrams, postcards, and even newspaper reports have been treated as writ petitions under this principle.

Several landmark cases were born this way. In Sunil Batra v. Delhi Administration (1980), a prisoner at Tihar Jail wrote a letter to the court about the torture of a fellow inmate. The court treated the letter as a writ petition under Article 32 and issued directions against the erring official. In Sheela Barse v. State of Maharashtra, a journalist’s letter about the condition of women prisoners in Bombay was similarly accepted as a petition. In Bandhua Mukti Morcha v. Union of India (1984), a letter about bonded labourers suffering in harsh conditions triggered a Supreme Court order directing the government to act against forced labour.

It is important to note that epistolary jurisdiction is not open-ended. Not every letter qualifies – the court exercises this power when the letter is addressed by an aggrieved person, a public-spirited individual, or a social action group for the enforcement of constitutional or legal rights of those who, due to poverty or social disadvantage, cannot approach the court themselves. The court will not insist on an affidavit in such cases, since requiring one would defeat the entire purpose of making justice accessible.

Constitutional foundation: Articles 32 and 226 🔗

PIL does not operate in a legal vacuum. It draws its authority directly from the Constitution. Under Article 32, any individual can approach the Supreme Court for enforcement of fundamental rights, while Article 226 gives High Courts similar power through writs. These provisions empower courts to issue writs of habeas corpus, mandamus, prohibition, quo warranto, and certiorari.

PIL has also widened the substantive scope of these articles. Through PIL, the right to life under Article 21 has been interpreted to include the right to a speedy trial, free legal aid, a clean environment, livelihood, medical care, dignity, and protection against custodial torture. These are not rights written into those two words in the Constitution – they are rights the courts have read into them through PIL proceedings, creating an expanded constitutional architecture for the most vulnerable.

Non-adversarial character 🔗

Traditional litigation is adversarial – two parties fight it out, and the judge acts as an umpire. PIL fundamentally changes this dynamic. In PIL, the proceedings are not in the nature of a contest between opposing parties but are aimed at vindicating public interest. The court takes on a far more active, inquisitorial role.

Courts in PIL matters have gone beyond simply hearing arguments and pronouncing judgments. They have appointed commissions of inquiry to investigate ground conditions, directed government agencies to file affidavits on compliance, issued continuing mandamus (ongoing directions that require regular reporting back to the court), and monitored implementation over years or even decades. This supervisory role is unique to PIL and reflects its fundamentally different purpose from ordinary litigation.

Flexible and innovative relief 🔗

One of PIL’s most powerful features is that courts are not constrained to standard remedies. The courts can furnish any relief appropriate to the situation – including interim compensation to victims of state lawlessness, directions to the government to frame policies, structural reforms to institutions, and even the appointment of expert committees to monitor compliance.

In PIL cases dealing with constitutional wrongs such as unlawful detention, custodial torture, or extrajudicial killings, courts have awarded monetary compensation – a remedy that did not previously exist under writ jurisdiction. This does not prevent the victim from separately suing for damages in a civil court. The development of such novel forms of relief reflects PIL’s adaptive nature: courts are willing to fashion remedies that fit the problem rather than being limited to what the rulebook prescribes.

Environmental PILs illustrate this well. In M.C. Mehta v. Union of India (1987), the court replaced the traditional principle of strict liability with the more stringent doctrine of absolute liability for industries dealing with hazardous substances – a legal innovation that emerged specifically because the PIL framework gave the court room to think beyond existing doctrine when the public interest demanded it.

PIL against state and public authorities only 🔗

It is worth noting a structural limit built into PIL: a PIL can only be filed against the Central Government, State Governments, or municipal/public authorities – not against private individuals. The definition of “State” follows Article 12 of the Constitution, covering the government and Parliament of India, state legislatures, and all local or other authorities within India’s territory or under governmental control. Private parties may be named as respondents in certain cases where the matter involves state oversight, but the primary respondent must be a public authority.

The bona fide requirement and the problem of misuse 🔗

PIL’s accessibility comes with a built-in check: the petitioner must establish that the case is being filed out of genuine public interest, not for personal gain, publicity, or to harass a party. The Supreme Court has repeatedly emphasized that PIL is a weapon to be used with care, and that courts must be vigilant against petitions where private motives hide behind the appearance of public interest.

The court has noted that PIL must not become “publicity interest litigation” or a vehicle for corporate, political, or personal agendas. Frivolous PILs create strain on the judicial system and delay genuinely urgent cases. This is why the bona fide requirement is treated seriously, and courts have the power to impose costs on petitioners who misuse the mechanism.

Suo motu cognizance: when courts act on their own 🔗

A further and perhaps most proactive feature of PIL is the court’s ability to take suo motu cognizance – acting on its own initiative without anyone filing a petition. Courts have initiated PIL proceedings based on newspaper reports exposing rights violations, tragic incidents reported in the media, or information received informally. This power means that access to justice does not always depend on someone having the knowledge or resources to approach the court – the court can come to the problem.

The Hussainara Khatoon v. State of Bihar (1979) case – widely regarded as the first PIL in India – arose from a newspaper article in the Indian Express exposing the plight of undertrial prisoners in Bihar who had spent more time in jail awaiting trial than the maximum sentence for their alleged offences. The Supreme Court treated this news report as a petition and ultimately ordered the release of over 40,000 undertrial prisoners, establishing the right to a speedy trial as a fundamental right.

Together, these features – relaxed locus standi, epistolary jurisdiction, constitutional grounding, non-adversarial proceedings, innovative relief, and suo motu cognizance – make PIL a genuinely transformative mechanism. It is not a perfect system, and its misuse is a documented concern. But at its best, PIL does exactly what it was designed to do: give the courts a way to hear those who have no other voice in the legal system.

What do you think? Given that epistolary jurisdiction allows courts to act on a mere letter, do you think this power is adequately protected against misuse – and should there be clearer statutory guidelines on when a letter qualifies as a writ petition? And considering how PIL has expanded the interpretation of Article 21 far beyond its original text, where should the courts draw the line between judicial innovation and judicial overreach?

References

1. https://www.legalserviceindia.com/article/l171-Public-Interest-Litigation.html
2. https://vajiramandravi.com/upsc-exam/public-interest-litigation/
3. https://www.rostrumlegal.com/inception-of-epistolary-jurisdiction/
4. https://www.sci.gov.in/jurisdiction/
5. https://www.indialawtestprep.com/blog/epistolary-jurisdiction-how-letters-changed-indian-courts
6. https://thelawmatics.in/the-meaning-of-epistolary-jurisdiction/
7. https://www.drishtijudiciary.com/editorial/public-interest-litigation-pil
8. https://www.legalserviceindia.com/article/l273-Public-Interest-Litigation.html
9. https://blog.ipleaders.in/constitutional-remedies-supreme-court/
10. https://cleartax.in/s/public-interest-litigation
11. https://www.scobserver.in/75-years-of-sc/what-a-jagged-little-pil-the-peoples-court-at-75/