Deputy Commissioner of Police Sourabh Tripathi had said that primary information indicated that the fire started on the 15th floor and spread upward to the 19th floor, which was affected the most.
The MFB managed to rescue at least 23 injured persons from the inferno that raged in the top three floors, and the firemen continued to battle the blaze in the afternoon.
On being alerted, 13 fire engines and seven water jetties were rushed to the building to douse the fire, which was tagged as level-3 (major). At present, the firefighters covered the blaze from all sides, he said.
Doctors at the Bhatia Hospital said that of the 15 injured persons who were brought there, 12 have been admitted to the general ward. The condition of three others is critical and they are being treated in the intensive care unit (ICU), he added.