Religion and religious identity dominate most aspects of life in India, especially in the past decade with an upsurge in Hindu nationalism, and most atheists keep their beliefs to themselves. Speaking out of turn can be dangerous - many complain of being shunned by friends and family and, in an extreme case in 2017, an outspoken atheist and rationalist was hacked to death in southern India. But Ravi Kumar literally wears his belief, or the lack of it, on his sleeve, in the form of tattoos and the word atheist that he has taken on as his surname. He also openly challenges the existence of God and, whenever an opportunity presents, he asks people to shun religion.