Air India said the cockpit door jammed during a flight over central India.
It said the captain could not return to the cockpit because the door was locked and that all efforts to open it, even from inside, failed on the trip from New Delhi to the Bangalore.
The co-pilot landed the plane at the nearest airport. The door was fixed by ground maintenance staff and the plane resumed its flight.
The airline said the incident posed no danger to the passengers.
COMMENT RULES: Comments that are judged to be defamatory, abusive or in bad taste are not acceptable and contributors who consistently fall below certain criteria will be permanently blacklisted. The moderator will not enter into debate with individual contributors and the moderator’s decision is final. It is Belfast Telegraph policy to close comments on court cases, tribunals and active legal investigations. We may also close comments on articles which are being targeted for abuse. Problems with commenting? email@example.com