In a letter to the Union Power, Coal, New & Renewable Energy (Independent Charge) Minister, Roy alleged there was continuous flow of effluents into the rivers despite direction to the companies situated alongside the rivers to stop industrial waste and give an action taken report within three months, which ended on August 12 this year.
Releasing a copy of his letter to the media here today, Roy urged Goyal to take stringent action against such companies for "failing" to comply with the orders.
Roy is also the chairperson of Damodar Bacchao Andolan.