Until the 1980s, all through the heyday of the spiritual organisation he founded, Prabhat Ranjan Sarkar’s impressive convoy of cars regularly charged through the streets of Calcutta in a show of godman power. Then there were the infamous skull marches by his followers, dressed in saffron robes and matching headgear, and carrying swords, sticks and, allegedly, human skulls. Sarkar was the founder of the Ananda Marg sect and an exemplar of the popular image of cultic behaviour with an edge of violence.