Three workers in the city sustained burns when they suffered electric shock at the site of construction of the storm-water drain on Friday night.
They were identified as C. Kannan, 50, of Kolathur, S. Balamurugan, 35, of Arakkonam and B. Arun Kumar, 27, of Villupuram. They sustained 52%, 79% and 23% burns respectively.
A police officer said: "On Friday, a few workers were digging in Thirumalai Nagar in ICF near UCO Bank. They suffered electric shock when their tool hit a power line while digging." They were rushed to the nearby hospital and then to Government Kilpauk Medical College and Hospital for treatment. Based on a complaint, the ICF police registered a case and booked site in-charge R. Parthasarathy, 65, supervisor R Panneerselvam, 42, and A Jayaseelan, 23, driver of earthmover for negligence and not taking adequate safety measures.