Fifty years have elapsed since the death of Comrade Charu Mazumdar in Kolkata's Lalbazar police lock-up. Back then, the Indian state must have heaved a huge sigh of relief, expecting his death to mark the end of the revolutionary wave that had spread across India in the wake of Naxalbari. But five decades later, when the Modi regime seeks to suppress every voice of dissent, it has to concoct the term 'urban naxal' to persecute dissent.