When is World Water Day celebrated?

What are the common water-borne diseases in India?

A person feels thirsty when more than ____ per cent of water is lost from the body.

What does the Hindi word 'swach' mean?

What does the hindiword 'swach' mean?

Pick your favourite entry for the 'Swach Saathi' Contest. (Read the entries on the discussion forum)

How awesome do you think the new Tata Swach Smart colours are?