Indian scientists have developed a technology for purifying and filtering contaminated water using nano-silver particles. Nano-silver coated ceramic candles are now available in the market to obtain pure water.

These candles have been developed by the International Advanced Research Centre for Powder Metallurgy and New Materials,
Hyderabad.

Giving this information in the Lok Sabha today, Science and Technology Minister Ashwani Kumar said IIT-Madras has also developed a similar method using nano-silver particles with other compounds for purifying and filtering contaminated water.

In reply to another question, the House was informed that the per capita availability of water in the country is 1545 cubic meters as per the 2011 census. It is coming down fast because of the increase in population.