As part of its expansion plan, Air India will move 60 of its 180 daily domestic departures to Terminal 2 (T2).
Meanwhile, Air India Express will operate all its domestic flights from the newly upgraded Terminal 1 (T1).
International flights for both airlines will continue to operate from Terminal 3 (T3).
https://www.mid-day.com/news/india-news/article/air-india-to-move-select-domestic-flights-to-delhi-t2-air-india-express-to-operate-from-t1-starting-october-26-23597080
