Ans: Article 12 of Indian Constitution mentions about the state. The state includes Central Government, State Government , Municipality, etc. The concept of P.I.L was taken from USA in 1980. The purpose of P.I.L is to protect human rights and for the benefit of public at large. In PIL, the individual interest of human is never considered. The purpose of P.I.L is to maintain rule of law in society. Justice P. N. bhagwati and Justice Krishna Iyer was the founder of P.I.L. Article 12 defines ‘State’ as: Legislative and Executive Organs of the Union Government: Indian Government Indian Parliament – Lok Sabha, Rajya Sabha Legislative and Executive organs of the State Government: State Governments State Legislature – Legislative Assembly, Legislative Council of State All local authorities Municipalities – Municipal Corporations, Nagar Palika, Nagar Panchayats Panchayats – Zila Panchayats, Mandal Panchayats, Gram Panchayats District Boards Improvement Trusts,...