Three fishermen on a mission to culture coloured fishes and used a pump to de-water the pond died of electrocution accidentally at Mamudpur under Bishnupur in West Bengal’s South 24 Parganas, police said today. The dead, identified as Deep Das, Prem Gayen and Kamal as their bodies were found floating on the waterbody today. The trio had planned to culture coloured fishes after cleaning the pond and for this they put a pump for de-watering the pond. They had put a powerful lamp near the pond which was surrounded by the aluminium wiring. Police said the trio might have died of electrocution after the wiring got short with the burning lamp during the night.