in short distance trains, like Shatabdi Express, 1 liter water bottles are given to every passenger. However, many of them either do not consume the water or consume only a part, and the leave the rest in the train at the destination. This amounts to considerable wastage of the precious natural resource (water) and a increasing the plastics pollution. The railways could either give smaller bottles (half liter) or similar to the airlines, provide water in paper cups, as and when needed. This would also save costs for the railways