The blaze was reported at around 5.55 PM in Room No 31 on the upper ground floor, situated near Gate No 8, following which 11 fire tenders were rushed to the spot, they said.
The room, where fire broke, is used for conferences by the ministry of external affairs, a senior police official said, adding that it took around 20 minutes for firefighters to douse the flames, which engulfed the furniture kept there.
A few officials were present when the fire broke out. The premises was evacuated and nobody sustained any injuries, the official said.
It is suspected that the fire was caused by a short circuit, he said, adding that investigation is underway.
IMAGE: Fire tenders rushed to the spot immediately. Photograph: ANI/ Twitter