An Air India flight was delayed on Saturday after a pilot allegedly assaulted a ground engineer minutes before take off from the southern Indian city of Chennai.
News sources said the pilot locked himself in the cockpit after the incident.
Air India ordered an inquiry into the alleged punch-up, which delayed the Boeing 787 Dreamliner flight by an hour with 122 passengers on board.
The flight to Delhi and Paris departed after another pilot replaced the one involved in the incident,
The Press Trust of India news agency said the engineer, who was in the aircraft for a routine check, suffered a minor chin injury.
In 2009, Air India pilots and cabin crew exchanged blows in front of startled passengers after a female attendant accused the pilots of sexually harassing her, it was claimed.
The Times of India reported that crew members threw punches and hurled abuse at each other on the flight from Sharjah in the United Arab Emirates to New Delhi.