A senior fire brigade official said that the mishap took place at around 2:50 am, in the slum cluster located behind Ankur apartment in Patparganj.
Seven fire tenders have been sent to place of incident. The inferno was doushed within an hour.
“The blaze broke out after an electric wire caught fire and fell on it," the official said.
Earlier on Apr 8, atleast 600 hutments were burnt down when a major power transmission line fell down on a slum in Ghazipur.