Tenughat Vidyut Nigam Limited, the Jharkhand government's thermal power plant, discharges all ash into the Katel river, which ends up choking its entry into Tenughat dam Ash water discharge from Raichur thermal power station is polluting the Krishna river, says Raghavendra Kushtagi of Jan Sangram Parishat. There have been many instances of crocodile deaths in the river due to rising levels of pollutionSingrauli power plant: National Thermal Power Corporation's Singrauli power plant in Madhya Pradesh is discharging unsettled supernatant water from the ash pond into Rihand dam, polluting the only water source in the areaObra thermal power station: Uttar Pradesh's state-owned Obra thermal power plant discharges ash slurry directly into the Son river. Delhi-based non-profit Centre for Science and Environment found mercury accumulation in the fish of this polluted river Anpara thermal power station: Uttar Pradesh Rajya Vidyut Utpadan Nigam Limited's Anpara plant discharges ash slurry directly into Rihand dam. Water in the reservoir is entirely contaminated by effluent discharges from industries in the area. The National Green Tribunal in May 2014 ordered installation of zero discharge facilities in all industries in the areaThe ash pipes of Chandrapur thermal power station in Maharashtra have several leaks.