The FIR was lodged at Sikanderpur police station based on a complaint filed by his wife, they said.
Sunil Kumar was electrocuted yesterday while repairing the electric line.
In the FIR, SDO Amit Kumar and Junior engineer Vinay Srivastava have been named besides three others, for culpable homicide, police said.
The department has announced exgratia of Rs 7 lakh for the victim's family.