Then, on the night of 3 December 1971, Canberra bombers of Eastern Air Command struck Tejgaon, which was guarded by PAF No. 14 squadron equipped with Sabre jets which lacked night fighting capability. By the morning of 4 December, strike missions against Tejgaon were assigned to 11 IAF squadrons, including Hunters of the No. 7 Squadron, No. 14 Squadron, No. 17 Squadron and No. 37 Squadron of IAF, as well as Su-7s of No. 221 Squadron and MiG-21s of No. 28 Squadron.