The Narcotic Drugs and Psychotropic Substances Act, 1985, commonly referred to as the NDPS Act, is an Act of the Parliament of India that prohibits a person the production/manufacturing/cultivation, possession, sale, purchasing, transport, storage, and/or consumption of any narcotic drug or psychotropic substance. The bill was introduced in the Lok Sabha on 23 August 1985. It was passed by both the Houses of Parliament, received assent from then President Giani Zail Singh on 16 September 1985, and came into force on 14 November 1985. The NDPS Act has since been amended thrice — in 1988, 2001 and 2014. The Act extends to the whole of India and it applies also to all Indian citizens outside India and to all persons on ships and aircraft registered in India.