Tamil Nadu is a manufacturing powerhouse and the birthplace of global corporate icons such as former Pepsi boss Indra Nooyi and current Google chief Sundar Pichai. Former chess world champion Viswanathan Anand, who for many years was the only real challenger to the iconic Garry Kasparov, is from Tamil Nadu.
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Faced with both floods and droughts, communities in southern India's largest state are reviving bodies of water without depending on the government.
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