GS 3: Science & TechnologyGS 3: Environment & EcologyPrelimsGS 3: Infrastructure: Energy, Ports, Roads, Airports, Railways etc.GS 3: Conservation, Pollution and Degradation
Northeast Frontier Railway shifts to bio-plastic on trains , Pg12
Northeast Frontier Railway pioneers eco-friendly shift, introducing biodegradable linen bags developed by IIT-Guwahati across 25 trains.