RJD candidate Abdul Bari Siddiqui is eyeing the major chunk of Yadavs and Muslims who together constitute nearly 28 percent votes.
In the last polls in 2009, Yadav had managed a victory by a slim maergin of 9,927 votes when the Congress was also in fray and its candidate Shakeel Ahmad polled over 1.11 lakh votes.
JD-U candidate Ghulam Ghaus is trying to make a triangular contest this time by making inroads into Dalit Muslims, extreme backward castes and Mahadalits, poorest among Dalits on the basis of work of development and empowerment initiated by Chief Minister Nitish Kumar.
In flood prone Madhubani, lack of road connectivity, electricity, schools, health centres and high rate of migration are issues of a major concern