Chander Pratap, 22, had suffered 80 per cent burn injuries in the explosion and died this morning, Dr Sharma said, adding 10 injured people are still admitted at the burn ICU of the central government-run hospital.
Yesterday, a 40-year-old man, who had 90 per cent burn injuries and was brought to Safdarjung Hospital in a very critical condition, had died.
Six injured people, a majority of them with extreme facial burns, were flown in to the national capital on November 3 and were admitted to the burn department of AIIMS trauma centre.
A massive explosion ripped a boiler at the state-run power giant's Unchahar plant in Uttar Pradesh's Rae Bareli district On November 1.
The 1,550 megawatt plant supplies electricity to nine states, according to officials, and employs some 870 people.