PATNA, Feb. 9 -- BJP's victory in three states -- Haryana, Maharashtra and Delhi -- has shifted the onus on Bihar with talks already staring in political circles and common people on its likely impact in Bihar. As preparations for the upcoming assembly elections due later this year gather pace, the Bihar elections present the BJP with its most significant challenge since its triumph in Delhi. Will it give a boost to NDA's quest to retain power in Bihar and win more than 200 seats, which it has set an eye on....