“One People, One State, One leader” was the policy of

A corporation is an organization, usually a group of people or a company, authorized to act as a single entity (legally a person) and recognized as such in law.

The acts of its owners bind the corporation is not true about corporation.

A piano is a musical instrument which has keys, pedals and strings in which the strings are struck by hammers.

PIN (Postal Index Number) was introduced in INDIA on August 15, 1972. This is the coding system used by postal services of India for different areas. Totally in our country there are 9 divisions, of which 8 are geographical & 9th is reserved to army.

The term PIL refers to Public Interest Litigation.

Public Interest Litigation was originated in United States in 1980's. 

Public Interest Litigation is directly filed by an individual or group of people in the Supreme Court of India and High Courts and judicial member.  This petition is accepted by the court only if there is interest of large public involved. Generally this petition is filed by a public spirited person or organisation, if it was felt that certain interests are undermined by the government.