Department of India Post issued Rs. 5 stamp commemorating Central Industrial Security Force. It was set up under an Act of the Parliament of India on 10 March 1969 with a strength of 2,800. CISF was subsequently made an armed force of the Republic of India by another Act of Parliament passed on 15 June 1983. Its current active strength is 148,371 personnel. In April 2017, the government raised the sanctioned strength from 145,000 to 180,000 personnel. Among its duties are guarding sensitive governmental buildings, the Delhi Metro, and providing airport security.