IndiGo confirmed it in a statement, and said, "IndiGo flight 6E-395 enroute Mumbai-Kolkata had to return to Mumbai earlier today due to a technical glitch (oil chip in one engine) in the aircraft. All operating procedures were diligently followed by the cockpit and in-flight crew."
The pilots returned the aircraft after detecting vibration in engine-1.
"All passengers were safely deboarded and the flight took off with an alternate aircraft at 1945 hours with a total delay of 1 hour 50 minutes," said IndiGo.
The airlines said safety of the passengers, crew and the aircraft is of utmost importance for it as at no time is it compromised.
IndiGo regretted the inconvenience caused to the passengers. (ANI)