Joint Committee report submitted to the National Green Tribunal in response to the NGT order of July 15, 2020 in Original Application No. 191 of 2015 filed by S. P. Muthuraman. The matter related to illegal sand mining on the banks of Thamirabarani river and discharge of illegal trade effluents into the river by the nearby industries and workshops. The pollution was also caused on account of discharge of untreated sewage into the river.