India, Dec. 6 -- With the IndiGo Airlines seeing massive flight cancellations and delays for the past four days, a common concern among passengers is how to claim their refund. The airline cancelled all domestic flights departing from the Indira Gandhi International Airport in Delhi till Friday midnight, and over 1,000 cancellations were seen across India in a single day on December 6.

The Delhi airport in a recent advisory said that the flight operations were "steadily resuming" and "getting back to normalcy". Meanwhile, IndiGo CEO Peter Elbers said the operations would be restored between December 10 to December 15.

"December 5 was the most severely impacted day, with the number of cancellations well over 1000. I extend our sincerest ...