India, Dec. 7 -- Budget airline IndiGo on Sunday said it has resumed operations across 137 of its 138 destinations, marking a significant recovery from the recent operational crisis and offering relief to stranded passengers.

In a statement, IndiGo said its on-time performance improved to 75 per cent, from 30 per cent a day earlier.

The carrier also announced a full waiver on cancellation and rescheduling charges for all bookings made till December 15.

What triggered the crisis

IndiGo, long known for its punctuality and scale of operations, has acknowledged that it failed to adequately prepare for the rollout of stricter Flight Duty Time Limitation (FDTL) rules for pilots that came into effect on November 1.

The revised regulations m...