151 Air Defence Regiment was raised on 1 July 1966 at Army Ordnance Corps Centre at Secunderabad.

The unit was re-organised as a Composite Air Defence Regiment in November 1977, when it was equipped with one battery of the Soviet ZSU-23-4 Shilka self-propelled, radar-guided anti-aircraft weapon system and two batteries of Soviet ZU-23 towed 23×152 mm anti-aircraft twin-barrelled auto-cannons.

The AD gunners, to their credit, foiled every attack to this vital airfield and claimed three hits, including one downing of a Pakistani Sabre jet.

[5][6] 1512 battery did well in defending field artillery guns, wagon lines, Akhnoor ferry, Mandiala bridge and the divisional headquarters of 10 Infantry Division.

The unit lost Havildar KBMB Tadavi and Gunner Gopa Kumar P during the operations.