Tata Group airlines' mergers get approval from regulator DGCA / DGCA de-rosters air traffic controller for aircraft close call at Mumbai airport / Close shave at Mumbai Airport: DGCA off rosters air traffic controller / Relief for lessors: DGCA de-registers a majority of GoAir's 54 planes / DGCA removes Vistara head of pilot training after probe / Vistara flight disruptions: DGCA asks airline to submit daily reports / DGCA fines Air India Rs 80 lakh for violating crew duty time rules / Sky beckons: DGCA issues maximum pilot licences in 2023 / DGCA fines Air India for deficiency in passenger services