This is regarding the article by Ishan Kukreti "Flouted with impunity" (16-30 September, 2017). I saw the rise in the demand and prices of sand because of a sand mining ban near Falgu River in Bihar. The impunity with which these mining groups flout environmental norms speaks about our own lack of concern about the environment. Studying the recharge capacity of rivers seems feasible and should be recommended to policymakers and administration.
RAVISH VASAN BIHAR