A vendor of a food stall suffered minor injuries in a low-intensity blast on the outskirts of Kolhapur town in western Maharashtra on Saturday night, police said.
The explosion occurred near a food cart close to Shahu toll plaza, a senior police officer said in Mumbai.
According to initial reports, the blast took place around 7:30 PM. Investigators have reportedly found that a bomb-like device was apparently placed inside a cardboard box near the food cart and when the vendor tried to open it, it blew up.
The injured, who is yet to be identified, suffered injuries in his hand, he said.
According to the officer, prima facie the explosion was that of a crude bomb.
An Anti-Terror Squad team is at the spot, sources said.
The incident occurred in the limits of Gokul Shirgaon police station on Kolhapur-Kagal Road, sources said.
Meanwhile, security has been tightened across the city and people have been advised not to touch any unclaimed object.