While he’s loath to admit it, BJP president Amit Shah is possibly facing his toughest political test in Bihar. He keeps a poker face and predicts a landslide victory for his party. But he has been camping in Patna far beyond the planned six days. And instead of addressing party workers, he’s chopper-hopping about, addressing political meetings. He took time off to speak to Kumar Pankaj on the Bihar elections. Excerpts: