The black box from Air India's ill-fated Ahmedabad-London flight was recovered from the rooftop of the medical college hostel building it crashed into minutes after take-off on Thursday.

All but one of the 242 people on board the London-bound flight died when it crashed into a residential area in Ahmedabad shortly after take-off.

A black box has been recovered from the site where the Air India flight had crashed in Ahmedabad a day earlier. Notably, after a plane crash, the black box becomes a major part of the investigation. It records the final moments of the flight,