Delhi water worst in India
The national capital is at the very bottom of the list, in a ranking based on tap water quality released by the Bureau of Indian Standards (BIS) on Tuesday.
It is among 13 cities, including Kolkata, Chennai, Bengaluru, Jaipur and Lucknow, where all tested samples failed to meet the BIS norms for piped drinking water.
Why this standard is not mandatory is beyond me??? more