Private airline IndiGo today moved the Delhi High Court against the Delhi International Airport Limited's (DIAL) direction to move its operations from terminal 1D to T2.
Last month, budget carriers IndiGo and SpiceJet were given two months to shift some of their flight operations to T2 from T1 at the Indira Gandhi International Airport.
The shifting of flight operations to T2 was a prerequisite for the commencement of T1's expansion plan. Low cost passenger carrier GoAir already moved to T2 on October 29.
According to the DIAL, it had given time till early January 2018 to IndiGo and SpiceJet for shifting some of their flights from T1 to T2.
Earlier, the deadline for three low-cost carriers IndiGo, GoAir and SpiceJet - which currently operate from Terminal 1D - to shift some of their flight operations to T2 was October-end.
The T1 expansion plan envisages a new integrated terminal that can handle 40 million passengers per annum.
DIAL had earlier said that the budget passenger carriers' departure terminal 1D and terminal 1C will be merged into one and expanded to accommodate 40 million passengers per annum.
The 1D terminal, which has a passenger handling capacity of 20 million per annum, handled 24 million passengers during 2016-17.
DIAL had earlier said that no new flight operations slot will be given for T1. Consequently, any new flight service by IndiGo and SpiceJet from IGI airport will have to be operated from T2.