The ban on sand mining notwithstanding, illegal dredging in Kasadi river near Panvel is going on in full swing, a green activist has alleged. Nandkumar Pawar, who has been fighting to protect water bodies and mangroves, said the violation is being committed with impunity. Pawar has filed a complaint against the illegalities with the Mangrove Cell and the Chief Minister’s Office. The plundering comes at a time when activists are trying to check the flow of untreated industrial waste into the water.