No casualty was reported in the incident as the premises were closed being a Sunday, police said.
"We got a call around 10:05 AM and seven fire tenders were rushed to the spot. It was at a mini health club in the Russian Trade Centre opposite Russian Embassy. It was a minor fire and was brought under control by 10:55 AM," said a Fire Department official.
Police and fire officials said that, prima facie, short circuit seems to be the cause of fire.