Chandu Mandi (48), a constable of Shampukur police station, fired on himself from a revolver when a homeguard, who was on duty along with him, was away.
"We recovered a suicide note from the kiosk where the constable said he is committing suicide as he was suffering from a prolonged illness. We are verifying the handwriting. It seems he was suffering from depression," an officer of Shampukur Police Station said.
Mandi, a resident of Howrah, is survived by his wife and a daughter.