He fell from the sixth floor of the building and died on the spot, the officer said, adding that he was declared brought dead by a hospital.
Bhattacharya, a resident of Dhupguri in West Bengal's Jalpaiguri district came to Kota in August last year and was preparing for medical entrance exam NEET.
The circle officer said, Bhattacharya along with three of his hostel mates was talking in the balcony on the building's sixth floor.
Around midnight, when they were going back to their rooms, it is suspected that Bhattacharya lost his balance and fell.
The victim's body has been sent to the mortuary of MBS hospital for postmortem, which will be conducted after his family members arrive, he said.
Similar incident was recorded in Maharashtra
In a similar incident on January 29, a 17-year-old JEE Mains aspirant from Maharashtra who was preparing for the entrance test in Kota sustained critical injuries after he allegedly fell from the balcony on first floor of his hostel building. The injured student is still in critical condition and undergoing treatment in a city's private hospital.