A probe has been initiated, police said.
A 37-year-old CISF personnel hailing from neighbouring Karnataka died after the firearm he was carrying went off, police said on Sunday.
A probe has been initiated to ascertain whether the deceased Ravi Kiran shot himself or if the weapon went off by accident when he was traveling in a bus to Karnataka on Saturday.
"Ravi Kiran hails from Karnataka and was going to his hometown Bengaluru from Kalpakkam when the incident occurred on Saturday," a senior police officer told PTI.
"Only after the report we receive on the condition of the weapon, will we be able to ascertain the cause of death," the officer said.
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