Krishnan (34) of Kottaiyur near Anchetty near Thenkanikottai was serving as waterman for the local body.
He used to monitor drinking water supply and provide water supply to areas from the overhead tanks owned by Uratchi.
Day before yesterday, he learn that a transformer in Mallapalli village in his water supply area has failed.
He tried to repair the transformer himself. While he climbed the transformer, he was electrocuted and died on the spot.
Anchetty police informed TNEB and stopped the power supply and recovered the body and sent the same to Thenkanikottai GH.