The 5th battalion of 5 Gorkha Rifles (Frontier Force), 5/5 GR (FF), fought gallantly in the Hyderabad police action in 1948, during which Nk. Nar Bahadur Thapa of 5/5 GR (FF) earned the first Ashok Chakra Class I of independent India, on 15 September 1948. The 1st battalion, 1/5 GR (FF), captured the Sehjra bulge fighting against a whole Pakistani battalion during the Indo-Pakistani War of 1971. The 4th battalion, 4/5 GR (FF), fought in the Battle of Sylhet, earning the distinction of being the first regiment of the Indian Army to be involved in a heliborne attack. Under the Indian Army, Gorkhas have served in Bangladesh, Sri Lanka, Siachen, and in the UN peacekeeping missions in Lebanon, Sudan and Sierra Leone.