This document provides information about public interest litigation (PIL) in India. It defines PIL as legal action initiated in court for the enforcement of a general interest in which a class or community has a pecuniary or other interest. It discusses where a PIL can be filed (High Court or Supreme Court), who can file one (any socially conscious person or NGO), and examples of cases that are and are not typically entertained as PILs. The document also gives a brief history of the introduction and development of PIL in India since the 1970s.