Order of the National Green Tribunal in the matter of Subhas Datta Vs State of West Bengal & Others dated 27/11/2018 regarding the alarming adverse air quality of Kolkata City which was stated to be highly polluted during the period commencing from mid-October to February end. The principal reason for the bad ambient air quality in the city of Kolkata and Howrah was identified to be auto emission apart from road dust, construction activities, burning of municipal waste and industrial wastes including plastics, population of DG sets and industrial emissions.

Order of the National Green Tribunal in the matter of Subhas Datta Vs State of West Bengal & Others dated 08/10/2018 regarding discharge of untreated effluents from the stables of Royal Calcutta Turf Club located in the Hastings area of Kolkata.

Order of the National Green Tribunal in the matter of Subhas Datta Vs State of West Bengal & Others dated 01/10/2018 regarding hot mix plants operating in Kolkata, West Bengal. Counsel for Kolkata Municipal Corporation that the hot mix plants in operation are being operated outside thhe Kolkata city limits.

Order of the National Green Tribunal in the matter of Subhas Datta Vs State of West Bengal & Others dated 18/09/2018 regarding air pollution caused by the method used for road repairing, fire in Dhapa Dumping ground, plying of old vehicles, burning of solid waste and other related issues.