Order of the National Green Tribunal (Eastern Zone Bench, Kolkata) in the matter of ARK Nirman Pvt. Ltd. Vs. Subhas Datta and Others dated 02/03/2017 regarding pollution of river Mahananda, Siliguri, North Bengal during Chhat Puja. NGT Vide order dated 01.11.2016 had disallowed construction of bridges across the river Mahananda.