In 1946–47, Lt. Sarwar was promoted as army captain and decided to attend the signal course before Capt. Sarwar was recommissioned in the Pakistan Army Corps of Signals in 1947, and directed towards attending the Military College of Signals.[1] After hearing the news of the first war between India and Pakistan over Jammu and Kashmir, Capt. Sarwar immediately wanted volunteered but refrained due to his officers wanted him to complete his schooling on the military signals, which he completed after an year.[3] In 1948, Capt. Sarwar took over the command of the 2nd Battalion of the Punjab Regiment of the Pakistan Army as its commanding officer, organized with the purpose of retaking Kashmir.[5]