Was Chanakya a demon or a man? His opponents had no answer. They would plot and plan, coax and connive, but the scholar-turned-politician was always a step ahead, confounding both their motives and their ambitions. He led his king, Chandragupta, to greatness, and set his kingdom on the road to peace and prosperity. Then, for generations of future rulers, he compiled a useful guide - the famously canny Arthashastra.