The Directorate General of Civil Aviation (DGCA), in close coordination with IndiGo, is carrying out the "technical evaluation" of the engine issues faced by the airline's two aircraft on Tuesday, according to an official.
Two flights of IndiGo, one from Kolkata to Bengaluru and another from Madurai to Mumbai suffered engine issues on Tuesday.
In a statement, IndiGo said its flight 6E 455 from Kolkata to Bengaluru returned to Kolkata after taking off due to a technical issue. The pilot followed standard operating procedures and landed back in Kolkata.