According to the police, he shot himself using an INSAS (Indian Small Arms System) rifle and died on the spot.
Two bullets pierced his neck and exited his head, they added.
Soon after the incident Periyanayakanpalayam DSP Namachivayam, Tudiyalur Inspector Rathinakumar and the police rushed to investigate the matter.
The body was seized by police and sent to Coimbatore Government Hospital for post-mortem.
Moreover, the police have seized the rifle and have also registered a case under relevant sections.
Further investigation is underway.
This report is filed by ANI news service.