No casualties had been reported, it said.
Smoke and flames engulfed the entire eastern side of the building, CCTV said, with rescuers concerned that the blaze could spread to the rest of the block.
Firefighters were battling the flames. CCTV footage showed the blaze first broke out on the 17th floor when insulation materials caught fire, the broadcaster said.
(This story has not been edited by NDTV staff and is auto-generated from a syndicated feed.)
Follow NDTV for latest election news and live coverage of assembly elections 2019 in Maharashtra and Haryana.
Subscribe to our YouTube channel, like us on Facebook or follow us on Twitter and Instagram for latest news and live news updates.