Since Thursday evening, Mr Jignesh and his family have been doing the rounds of the Civil Hospital in Ahmedabad, trying to find details of his 22-year-old niece - one of the 242 passengers that died in an Air India plane crash earlier that day.

Investigators on Friday recovered the plane's digital flight data recorder, or the black box, which was recovered from a rooftop near the crash site and likely will lead to clues about the cause of t...