"Nearly 500 dwellings and some piles of plastic were burnt," a fire official told IANS. "No casualty has been reported till now," he said.

The officials said they got a call around 3 a.m. Tuesday, and the fire was controlled by 5 a.m.

Poll

Who will win the Punjab Elections?

BJP 32.86%

AAP 41.43%

INC 25.71%

Submit

View All In Poll

"A total of 20 fire tenders were rushed immediately," he said.

"Piles of plastic fed the fire," he said.

A fire in the same slum in 2010, caused by after a high voltage electricity line, had gutted 100 dwellings.

According to reports from Delhi government, nearly half of Delhi's 15 million population lives in slums, JJ clusters and unauthorised colonies.