The blaze had started after 12.30 am on Friday at the '1 Above' pub on the terrace of Trade House Building in Kamala Mills compound in Lower Parel, a commercial hub, resulting in collapse of its bamboo-propped canopy. The fire, which left several people injured, also engulfed Mojo's Bistro, a pub a storey below. Most of the 14 victims died of asphyxiation.
All other possibilities, including that of short circuit is also being probed, he added.
The police have booked Hratesh Sanghvi, Jigar Sanghvi and Abhijeet Manka of C Grade Hospitality, which manages the pub, along with others, under IPC sections 304 (culpable homicide not amounting to murder), 337 (causing hurt by act endangering life or personal safety of others) and 338 (causing grievous hurt by act endangering life or personal safety of others).
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Among those killed was Khushbu Bansali, the woman who was celebrating her 29th birthday at '1 Above' pub in upscale Parel's Kamala Mill compound, and several of her friends.
The Brihanmumbai Municipal Corporation (BMC) yesterday suspended five officials, including those attached to the G- South ward for dereliction of duty. There are allegations that civic authorities turned a blind eye to construction irregularities and violation of fire safety norms in the compound.