Key PointsIndiGo will shift 12 daily international departures from Mumbais CSMIA to Navi Mumbai International Airport (NMIA) starting February 2027.This move, in collaboration with Adani Airport Holdings, aims to expand international operations at NMIA and relieve capacity at CSMIA.IndiGo will also transfer domestic flights to NMIA to support international connections, adding a new Kathmandu service.The transition establishes a dual-airport system for Mumbai, enabling CSMIA redevelopment and new international routes.