The action plan include optimum utilisation of check-in counters, introduction of flap gates at the boarding place and an increased boarding gate area among others.
Budget carriers IndiGo, GoAir and SpiceJet currently operate from this terminal, which was built to handle 16 million passengers annually.
Civil Aviation Ministry has already given its nod to the action plan, after aviation secretary R N Choubey held a review meeting during a recent visit to the Delhi Airport, an official release said today.
The civil aviation secretary during the meeting emphasized for better coordination among all stakeholders including government agencies to provide a passenger friendly environment at the airport, the release said.
As part of the plan, airlines have been asked to utilize all available check-in counters to ease congestion, it said adding presently airlines are utilizing only 58 check-in counters against the 96 available to them, which is leading to longer queues.
To reduce the waiting time at the security screening, CISF will deploy additional manpower by September 15 at all such machines and frisking booths, it said.
DIAL will also increase the width of the terminal entry gate, which would enable deployment of two CISF personnel at each gate against one personnel at present.
Besides, DIAL will start trials for self-bag drop machines by October 1, it said adding the airport operator will also use specialised trays to facilitate speedy screening of hand baggage.
Also, inter terminal transfer on airside will be made operational by September 15 as part of the terminal decongestion plan, the release added.