PIL stands for Public Interest Litigation. It is one of the most powerful and democratising legal tools in the Indian judicial system — a mechanism that allows any citizen to approach the Supreme Court or High Court on behalf of those who cannot access justice themselves.
In simple terms, PIL breaks a fundamental rule of traditional law — that only the aggrieved party can file a case. Under PIL, anyone acting in genuine public interest can knock on the court’s doors. That’s a revolutionary idea, and India has used it to remarkable effect.
| Category | Details |
| Full Form | Public Interest Litigation |
| Also Known As | Social Action Litigation (SAL) |
| Introduced In India | Early 1980s |
| Introduced By | Justice P.N. Bhagwati & Justice V.R. Krishna Iyer |
| Filed Under | Article 32 (Supreme Court) / Article 226 (High Courts) |
| Who Can File | Any citizen acting in genuine public interest |
| Court Fee | Nominal (much lower than regular litigation) |
| Focus | Public welfare, fundamental rights, justice for marginalised groups |
| Risk of Misuse | Frivolous PILs may attract costs/fines from courts |
| Global Equivalent | Public Interest Litigation exists in US, UK, Pakistan, Bangladesh |
How Did PIL Begin in India?
Before the 1980s, Indian courts followed a strict rule of locus standi — only the person directly affected by a wrong could file a case. This effectively shut out millions of poor, illiterate, and marginalised people who suffered the most but had no legal recourse.
Justice P.N. Bhagwati and Justice V.R. Krishna Iyer changed that. They pioneered the concept of PIL — allowing courts to treat even letters and postcards from ordinary citizens as formal petitions if they raised matters of genuine public importance.
One of the earliest PILs was filed when a letter was sent to the Supreme Court about the inhuman conditions faced by inmates at a protective home in Agra. The court treated that letter as a writ petition and acted on it. That moment fundamentally changed how India thinks about access to justice.
Who Can File a PIL?
This is where PIL differs from regular litigation. You don’t need to be personally affected by the issue. Any of the following can file a PIL:
- An individual citizen acting in good faith
- A registered NGO or social organisation
- A journalist or activist raising a matter of public concern
- A lawyer on behalf of a group without resources
- Even a letter addressed to a judge, in some cases
The only condition is that the petition must serve genuine public interest — not private gain, corporate interest, or a personal grudge dressed up as a public cause.
Landmark PIL Cases That Changed India
Some of the most transformative legal developments in India came through PILs:
- Vishaka v. State of Rajasthan (1997) — Laid down guidelines against sexual harassment at workplaces, which became the foundation for the POSH Act
- M.C. Mehta v. Union of India — Multiple PILs on environmental pollution that forced industries to relocate and introduced emission standards
- Hussainara Khatoon v. State of Bihar (1980) — Led to the release of thousands of undertrial prisoners who had been jailed longer than their maximum sentence
- Oleum Gas Leak Case — Established the principle of absolute liability for hazardous industries
- Right to Food Case — PIL that helped shape India’s National Food Security Act
How to File a PIL
Filing a PIL is far simpler than regular litigation. In the Supreme Court, it falls under Article 32 of the Constitution. In High Courts, it falls under Article 226. Key steps include:
- Draft a petition clearly stating the public interest issue
- Collect relevant evidence and documentation
- File in the appropriate court (Supreme Court or High Court)
- Pay the nominal court fee
- The court decides whether to admit the PIL and issue notice
Courts have the discretion to admit or reject PILs at the threshold stage. Frivolous PILs — those filed for publicity, personal gain, or to harass opponents — can attract significant monetary penalties.
PIL vs. Regular Litigation
| Feature | PIL | Regular Litigation |
| Who Can File | Any citizen | Only directly affected party |
| Locus Standi | Relaxed | Strict |
| Purpose | Public welfare | Private rights enforcement |
| Court Fee | Nominal | Higher |
| Speed | Courts often fast-track | Depends on case load |
| Outcome | Policy changes, systemic reform | Relief to individual plaintiff |
Frequently Asked Questions (FAQs)
Q: What is the full form of PIL in law?
A: PIL stands for Public Interest Litigation — a legal tool that allows any citizen to file a case in court on behalf of the public or marginalised groups.
Q: Who introduced PIL in India?
A: Justice P.N. Bhagwati and Justice V.R. Krishna Iyer are credited with introducing and developing the PIL concept in India during the early 1980s.
Q: Can anyone file a PIL in India?
A: Yes. Any Indian citizen can file a PIL in the Supreme Court under Article 32 or in a High Court under Article 226, provided it serves genuine public interest.
Q: What is the difference between PIL and a regular lawsuit?
A: In regular litigation, only the aggrieved party can file. In PIL, any citizen can file on behalf of others — locus standi is relaxed to promote access to justice.
Q: Can a PIL be filed against a private company?
A: Primarily, PILs are filed against state authorities and government bodies. PILs against private entities are generally not entertained unless they involve a public duty or public interest element.
Q: What happens if a frivolous PIL is filed?
A: Courts can dismiss it at the threshold and impose significant monetary fines on petitioners who misuse PIL for personal or commercial gain.
Q: What article governs PIL in the Supreme Court?
A: Article 32 of the Constitution — which guarantees the right to constitutional remedies — is the basis for filing PILs in the Supreme Court of India.
Q: What is the difference between PIL and SAL?
A: PIL (Public Interest Litigation) and SAL (Social Action Litigation) are used interchangeably. Both refer to the same concept of litigation filed in public interest rather than private grievance.
