He was also posthumously given the title Bir Uttom, meaning "better among braves" in Bengali, the second-highest Bangladeshi award for gallantry.

His father, Shamsuddin Ahmedan, was a lawyer who earned his LLB degree from Aligarh Muslim University and started his law practice in Kolkata.

While studying for a bachelor of science degree at Feni College he joined the Pakistan Air Force;[2] he later shifted to the Pakistani Army (Infantry Division) where he reached the rank of captain.

On 3 July 1971, with the intention of leaving Pakistan to join the independence fight in Bangladesh, he crossed the river Monawara Tabi of Maral Area and entered India.

[3] He reported to the Government of Bangladesh High Commission in exile at Kolkata and joined the East Bengal Regiment.

The attack on Kamalpur BOP was launched on the night of 30-31 July 1971 under the command of Major Moinul Hossain Chowdhury.

Delta Company crossed the Pakistani bunker area, entered the community center near the BOP, and started a very close-range fight.

On 31 July 1971, Punjab Regiment of Pakistan Army fired two mortar shells at Captain Salahuddin Mumtaz and he was killed.