Rajendra took the extreme step at his in-laws' house on Saturday.
His brother-in-law told police that after having cough and cold he isolated himself in a room after some villagers suspected that he was suffering from COVID-19.
"Maybe, he committed suicide due to this. The matter is being probed," a police official said.
The district's Chief Medical Officer Dr Santosh Kumar said the man had not visited any government hospital for treatment.