Air India flight AI171 crashed earlier this month - killing all but one of the 242 people onboard - but Natarajan Chandrasekaran, chairman of the airline, defended the plane's "clean" engines

An emerging footage has shown the dramatic moment that the sole survivor of the Air India crash walked back to the inferno in a bid to rescue his brother.

"We have identified 259 victims. They include 240 passengers and 19 non-passengers. DNA test result of one passenger is still awaited," said Rakesh Joshi, superintendent of Ahmedabad civil hospital.