Whilst the Eastern approach to Dacca had been hastened by Heliborne ops, the Northern axis also needed to be accelerated. Once again, the prevailing air superiority over E Pak meant that airborne operations could be employed, to a Dropping Zone North of Tangail.
To airlift the troops of the Para Battalion, 6 An-12s, 20 Packets & 22 Dakotas were employed. While the An-12s & Packets operated from Dum Dum, the Dakotas were positioned at Kalaikunda. Gnats & MiG-21 aircraft were used to provide AD cover to the op.
The drop which was carried out in daylight from 1600 to 1630 hrs, was preceded by a Pathfinder Force dropped from a Packet, as well as a dummy drop some 16 km away from the actual DZ. The eventual target for the troops was a bridge at Poongli on the Jamalpur-Tangail road.
The main drop commenced with An- 12s bearing heavy loads, followed by Packets dropping platform loads & troops. The Dakotas brought in the rear with the troops. When the last aircraft exited the DZ, 750 troops had been dropped, along with their arms, equipment & light vehicles.
This airborne operation - the first of its kind in the subcontinent - was made possible by the astute joint planning by the military leadership, achievement of air superiority over E Pak & of course, the integration & innate bonhomie between the services at the tactical level.