BIHAR: In Bihar, seven constituencies are going to polls in the fourth of the six-phase Lok Sabha election in the state. Prominent among the candidates are JD(U) president Sharad Yadav from Madhepura, being challenged by RJD's Rajesh Ranjan alias Pappu Yadav, and cricketer-turned BJP leader Kirti Azad from Darbhanga and his challenger former Union minister and RJD leader M A A Fatmi.