A massive fire broke out in the slums of South-East Delhi's Tughlakabad area on Monday night.
A call was received at 12.50 am and 28 fire engines were rushed to the spot, a fire department official said.
The police and fire department took out all the slum occupants in time even as most were fast asleep.
The fire was controlled at around 3:40 am, but around 1500 shanties were burnt, leaving Hundreds of people homeless. The government is currently assessing the loss.
"We received information about a fire at around 1 am at slums in Tughlakabad. All police staff reached here immediately. It is being said that around 1,000-1,200 shanties caught fire," Rajendra Prasad Meena, Deputy Commissioner of Police (DCP), South East, told ANI.
"Locals are saying most people came out of their shanties after a fire broke. However, it cannot check as it is a big fire," he said.
Firefighting operations are underway and no casualty has been reported so far.