In 1947 the division became the nucleus of the Punjab Boundary Force under Major-General T.W. Rees. The Boundary Force was established on 17 July 1947, with its headquarters at Lahore. It became operational 1 August 1947, but was disbanded on 1 September because of its ineffectiveness in controlling the riots breaking out as a consequence of Partition. It had approximately 15 Indian and 10 Pakistani battalions, and comprised 5th Indian Infantry Brigade, 11th Indian Infantry Brigade, 14 Parachute Brigade, which became part of the Pakistan Army, 43 Lorry Brigade (ex 1 Armoured Division) and 114th Indian Infantry Brigade. Also attached were 50th Parachute Brigade and 77th Parachute Brigade (both formerly with 2nd Airborne Division), and 123rd Indian Infantry Brigade. After Rees handed over, Major-General K. S. Thimayya reportedly took over command of the Boundary Force. The Division moved to Jullunder after the Boundary Force was disbanded.