The son of an Air India crash victim missed the last phone call from his mother before she boarded the flight in Ahmedabad.
Chirag Mahesh Patel revealed he had been called by Manju Mahesh Patel, 79, at 4am.
Ms Patel had been seated in 12D on Flight AI171 as it crashed moments after taking off on Thursday.
She was in the next row from British passenger Vishwash Kumar Ramesh, 40, who was seated in 11A, and escaped the wreckage through an opening in the fuselage.