In 2014 Narendra Modi's BJP returned to power winning a majority in India's parliament. He offered a billion Indians a blend of pro-business economics and a vision of India as primarily a Hindu state. In recent months, Muslims and Dalits - formerly known as untouchables - have been beaten and sometimes killed on suspicion of having slaughtered cows, which are sacred to many Hindus. So as India approaches the 70th anniversary of its independence Owen Bennett Jones is in Delhi to discuss with a panel of experts the BJP's Hindu Nationalism and ask how much of threat is it to India's secular republic.

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