India, Dec. 5 -- IndiGo's nationwide operational meltdown entered its fourth straight day on Friday, leaving thousands of passengers stranded and airports scrambling to manage crowds.

Delhi saw the worst disruption, with all IndiGo flights cancelled till midnight (23:59), affecting 235 departures. All flight departures from Chennai airport also remained cancelled till 6 pm. Follow IndiGo flight status LIVE updates

Bengaluru airport reported 52 incoming and 50 outgoing cancellations, while Hyderabad saw 92 IndiGo flights scrapped through the day. In total, the crisis has pushed over 1,000 cancellations in just four days.

The airline's trouble began earlier this week after an Airbus A320 software update advisory caused a chain of delays,...