IndiGo 5000 series flights will shift to T3 terminal.
GoAir will continue its domestic operations from T2 terminal.
Post completion of infrastructure enhancement at T2, the terminal will be able to handle 18 million passengers per annum (MPPA), up from current 15 MPPA, the DIAL said.
At present, GoAir fully and SpiceJet and IndiGo partially operate their domestic flights from T2 terminal.
Air India, Vistara and Air Asia India operate completely out of T3 terminal.
The revamped Terminal 2 was opened in October 2017, which saw partial shifting of flight operations of SpiceJet and IndiGo, and complete shifting of GoAir from Terminal 1.