The National Green Tribunal (NGT), Southern Bench has admitted an application alleging environmental violations by the 1,500 MW Vallur Thermal Power Project. The Vallur Thermal Power Project is a 1,500 MW coal-based thermal power project in Tamil Nadu. It is operated by NTPC Tamil Nadu Energy Company Limited (NTECL). The project uses coal-based thermal power generation, in which coal combustion produces steam to drive turbines and generate electricity.