Public interest litigation (PIL) is a legal action initiated in a court of law for the protection of public interest, typically by a non-governmental organization or an individual acting on behalf of the public.

Public Interest Litigation (PIL) is a legal action initiated in a court of law for the enforcement of public interest or general interest in which the public or a class of the community have a pecuniary interest or some interest by which their legal rights or liabilities are affected.

The doctrine of separation of powers is a fundamental principle in the Indian Constitution, which divides the powers of the government into three branches - the legislature, the executive, and the judiciary. Judicial legislation, where the judiciary creates laws through its judgments, goes against this principle.

Public Interest Litigation (PIL) in India has seen significant growth over the years, with citizens using the legal system to address issues of public concern. This form of litigation allows individuals or organizations to bring matters of public interest to the attention of the courts, leading to positive changes in society.