A fire broke out at the Infinity Benchmark in Kolkata's Salt Lake area on Wednesday, and fire tenders were rushed to the spot.
The fire reportedly broke out in a server room on the sixth floor of the building at about 7:30 am.
Firefighters were seen trying to break the glass facade of the building to enter and douse the blaze, the reports suggested.
No casualties were reported and 50 employees across the 18 floors of the building were safely evacuated,. according to the Press Trust of India
Salt Lake is considered the IT hub of Kolkata.