Of these, four services will be operational from tomorrow while the remaining eight flights are scheduled to take off next month, IndiGo said in a release here.
The Gurgaon-based carrier will be operating 516 daily flights, connecting 36 domestic and overseas destinations with a fleet of 79 aircraft.
Effective July 15, IndiGo will launch a second daily flight between Mumbai and Indore and fourth daily flight between Delhi and Pune, the airline said, adding all these are non-stop flights.
Also, a third daily flight between Mumbai and Indore and a sixth daily flight between Mumbai and Kolkata will also be launched from August 3, the release said.