No casualties were reported in the incident at Bathra apartment which took place around 12 noon, following which as many as 14 fire tenders were rushed to the spot, a fire brigade official said.
People had started evacuating the building by the time fire tenders reached there. The fire fighters took around an hour to douse the flames, following which a cooling operation was launched, he said.
The fire is suspected to have been caused by a lamp lit as part of ashthami rituals. Investigation is underway, a police official said.