Mumbai Airport T1 revamp: The airport operator has asked airlines to submit their transition plans by November 3, 2026, for the proposed shift. Mumbai International Airport Ltd MIAL has proposed a phased transition of five million passengers per annum mppa of international traffic from Chhatrapati Shivaji Maharaj International Airport CSMIA to facilitate the redevelopment of Terminal 1 T1 The airport operator has asked airlines to submit their transition plans by November 3.