[neper]

Thanks friend,
i will definetly use rain water as of now till i run out of it,
meanwhile i will check the mineral water available at local departmental shops
n if it will be fine i will leave it open for a day to clearoff chlorine,

Well regarding getting RO system there is 2 major problems,
first is the ro system we get is having a extra cylinder of mineral attached to it
inside which adds minerals to it tomake it drinkable so i am not sure if it can be used or not( RO wihtout mineral would be available but it will take some time to find)

second is that i am with my parents n not employed so it will be hard for me to get a RO system since it is little bit expensive, but i can surely save money for it but will take some time.

I will try to find some water source so that i wont face problem for long run.
thanks friends