The deaths occurred during maintenance work on a wastewater treatment tank at a facility in Tamil Nadu's Krishnagiri district.
Three contract workers died on Monday evening after allegedly inhaling toxic gas at a Tata Electronics facility near Hosur in Tamil Nadu, according to reports from Mint and The New Indian Express.
The incident took place at an effluent treatment plant in the Vanniyapuram area near Uddanapalli, where workers were performing maintenance and cleaning on a nano-filtration feed tank.
The deceased have been identified as B Akmal, 28, P Kaveri, 32, and M Sarathikumar, 25, all from the Dharmapuri district.
Krishnagiri Collector Dinesh Kumar stated that the workers were part of a team engaged by Nalco Water, an Ecolab company, for the maintenance work.
The collector noted that there were no proper safety measures in place while the effluent treatment plant was being handled.
Tamil Nadu's industries minister said on X that the incident will be investigated and action will be taken based on the findings.
The Rayakottai police and district authorities have launched an inquiry to determine the exact cause of death and examine industrial safety practices at the plant.
