Sir i would like to raise another interesting but sad point:
Rarely you have seen 2 or 5 lt water bottle/can at any railway station.
Water is most important requirement for every one.barring 'rail neer' and very few other brands all 1lt water bottles are priced at 15/-.the filtered water vending machine is available mainly in south. Any one can calculate the cost burden on a common passenger if he purchases water in long distance journey.or drink unhygienic water from railway station tab where long Que are common.