PATNA, India (Reuters) - There's an apocryphal story about Bihar, a sprawling state on the Gangetic plains of eastern India that for decades held the dubious honour of being the most violent, poverty-stricken and corrupt in the land. A Japanese minister visiting in the 1990s, shocked at the decrepit buildings, the darkness at night even in the centre of town and the crumbling roads, declared that it was all solvable. "Give me three years," he told a state leader, "and I can turn Bihar into Japan." "That's nothing," came the laconic reply from his host. ...