Coimbatore: The death toll in the Tirupur dyeing unit tragedy rose to three on Monday, when one more person died of asphyxiation. Police identified the deceased as 55-year-old Rajendran, who was working as a fitter with the unit at Kothukaduthottam at Veerapandi. Police said Rajendran, along with unit manager Dinesh Pandian, had entered the effluent tank to rescue two workers – Vadivel and Nagaraj – who were roped in for cleaning the tank on Sunday after they inhaled poisonous fumes and fell unconscious. While Vadivel and Dinesh died of asphyxiation in the effluent tank itself on Sunday, fire and rescue services personnel had rescued Rajendran and Nagaraj and admitted them to the Government Medical College and Hospital in Tirupur. Rajendran died without responding to treatment in the early hours of Monday. V Pugazhenthi, joint director, industrial safety and health, Tirupur, inspected the unit on Monday. “The unit did not allow any procedures and a detailed report will be submitted to the industrial safety and health department director.”tnn