Avinash, a junior constable at Kotwali police killed his mother as Dipali and father Balak Patro (both in their 50s) at their home in Gopiballavpur today afternoon, SP Bharati Ghose said.
Police was informed by the neighbours about the incident. Hearing the gun shots they rushed to the spot and found the two lying in pool of blood and Avinash was seen with his service firearm in his hand, Ghose said.
The three were rushed to a nearby health centre where the couple was declared brought dead and Avinash is undergoing treatment.