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==Rainwater harvesting in India==
Tamil Nadu is the first Indian state to make rainwater harvesing mandatory. On 30 May 2014, the state government announced that it will set up 50,000 rainwater harvesting structures at various parts of the capital city of Chennai. [http://timesofindia.indiatimes.com/city/chennai/50000-rain-water-harvesting-structures-to-come-up-in-Chennai/articleshow/35794531.cms]
<font color="#555555" size="3">'''The reasons for using rainwater harvesting systems answer three questions:'''</font>