The deceased has been identified as Dinesh. D (aged around 25) who was attached to Chattisgarh police, they said.
The mishap occurred at Government Women's College in Srikakulam town in the afternoon when Dinesh's colleague Govind Singh was cleaning his service weapon.
"...We are investigating whether it was an intentional act or due to accidental firing," a senior police officer said, adding they were interrogating all those present at the spot.