A call was received around 8.30 PM about smoke emanating from the basement of the building, said the officer.
As many as 10 fire-tenders were rushed to the spot and the flames were brought under control, he said, adding that the operations were still on.
Janki Lal, a fireman aged around 45-50 years, received injuries while trying to douse the flames and was taken to the Ram Manohar Lohia Hospital, said the officer.