[1][2][3] 146 RAC was assigned to 50th Indian Tank Brigade and initially based at Kirkee Barracks in Poona, later moving to Dhond until 13 July 1942, and then Lohardaya (under XV Indian Corps) until 1 January 1943, when the regiment moved to the Ratu-Ranchi area.

During July 1945 the 254th Indian Tank Brigade, having returned from Burma, became established at Ahmednagar, in Maharashtra State.

[4] The regiment was assigned Valentine tanks for training purposes, and also used them in combat in its earliest days.

The regiment's 1945 reassignment to 254 Brigade led to the introduction of the Sherman tank,[4] though a report of June 1945 shows that 146 RAC was not considered battle-ready at that stage, having received only 12 Shermans for the entire regiment, and with three quarters of its manpower being new recruits with insufficient training on the vehicles.

[4] 146 RAC was an active participant in the Arakan Campaign, and one of the key combatants of the Battle of Ramree Island in 1945.