Prevention trans-border crimes, unauthorized entry into or exit from the territory of India.2016–2018 India–Pakistan border skirmishes.2014–15 India–Pakistan border skirmishes.2001–2002 Operation Prakarm – India-Pakistan Standoff.2001 Bangladeshi-Indian border skirmishes.BSF had played a very important role in Liberation of Bangladesh which Indira Gandhi and Sheikh Mujibur Rehman had also acknowledged. BSF had trained, supported and formed part of Mukti Bahini and had entered erstwhile East Pakistan before the actual hostilities broke out. In fact, for BSF the war on eastern front had started well before the war actually broke out in December 1971. The BSF's capabilities were used in the Indo-Pakistani War of 1971 against Pakistani forces in areas where the Regular Forces were thinly spread BSF troops took part in several operations including the famous Battle of Longewala. Keeping in mind the above, emergency commissioned officers and SS officers of the Indian Army were inducted in large numbers in the force along with IPS officers who were deputed to the force for high level appointments. Since it was a new force, the officers had to be deputed or inducted from outside to fill the various vacancies at various levels until the force's own cadre matures sufficiently. K F Rustamji, from the Indian Police Service, was the first Director General of BSF. This act brought greater cohesion in border security. So after the end of the war, the government created the Border Security Force as a unified central agency with the specific mandate of guarding India's international boundaries. This attack exposed the inadequacy of the State Armed Police to cope with armed aggression. However, during the Indo-Pakistani War of 1965, Pakistan attacked Sardar Post, Chhar Bet, and Beria Bet on 9 April 1965 in Kutch. Since independence, the protection of India's international boundaries was the responsibility of local police belonging to each border state, with little inter-state coordination. 6 Proposal regarding guarding the Indo-Myanmar border.BSF has been termed as the First Line of Defence of Indian Territories. It currently stands as the world's largest border guarding force. The BSF has grown exponentially from 25 battalions in 1965, to 192 battalions with a sanctioned strength of 270,363 personnel including an expanding Air wing, Marine wing, An artillery regiment, and specialized units. The BSF has its own cadre of officers but its head, designated as a Director-General (DG), since its raising has been an officer from the Indian Police Service. It comes under the Ministry of Home Affairs. It is the only CAPF to have a full-fledged Water Wing, Air Wing and even an Artillery Regiment of its own. It has various active roles during an outbreak of war. It is one of the five Central Armed Police Forces of India, and was raised in the wake of the 1965 War on 1 December 1965, "for ensuring the security of the borders of India and for matters connected there with". The Border Security Force ( BSF) is India's border guarding organisation on its border with Pakistan and Bangladesh.