Tata Group after big success in Tata Nano launched a water purifier named Tata Swach at very affordable cost for the poor people of India which can not afford highly priced water purifier present in the market so it will save the lives of millions people who die each year of waterborne diseases.Tata’s water filter grew out of a decade of research and development. It uses paddy husk ash as a matrix, bound with microscopic particles of silver to kill the bacteria that cause 80 per cent of waterborne disease, executives said.

The Tata Swach which Hindi means “clean” – meets U.S. Environmental Protection Agency standards, and doesn’t require running water, electricity, or boiling, executives said.

Tata will sell two versions of the 19-litre Swach container, priced at 749 rupees ($16.11) and 999 rupees ($21.48), depending on the material.The filter itself costs 299 rupees ($6.43). It will purify 800 gallons (3,000 liters) of water – enough for a family of five for a year – before it automatically shuts down.

Hindustan Unilever’s Pureit filter, which also does not require access to running water or electricity, costs 2,000 rupees ($43.01), with a replaceable battery kit that costs 365 rupees ($7.85) and can purify 1,500 litreof water.

Initial production will be one million units a year from a Tata Chemicals plant in Haldia, West Bengal, with a planned ramp-up to three million units annually within five years.

Executives said they plan to invest 1 billion rupees in the project over the next five years, and eventually export the filter to Africa.

“The whole group has been fired with the view of how can we create products which were earlier not within reach of the vast number of people through innovation and technology, not just stripping down the value of the product,” Tata Sons chairman Ratan Tata said.

Some 1.2 billion people globally don’t have access to safe water, according to a 2006 UNDP report. Almost 80 per cent of diseases in developing countries are associated with water, causing some 3 million early deaths, according to a 2009 UNESCO report. In India alone, 380,000 children die each year from diarrhea, according to UNICEF.