Two of the three seats, Araria parliamentary and Jehanabad assembly constituencies, are particularly significant as the RJDs so-called Muslim-Yadav (MY) arithmetic is strong there but if a traditional consolidation of JD(U) and BJP voters happen, then their candidates can fare well, poll watchers said.
Both seats were held by the RJD and deaths of Mohammed Taslimuddin, who won from Araria in 2014, and Mundrika Yadav, who was an MLA from Jehanabad, have necessitated the March 11 by-polls.
The RJD candidate had bagged over 41 per cent vote and the combined vote share of the BJP and JD(U) was close to 50 per cent.
In a constituency where Muslim voters are over 35 per cent, the BJP is banking on a consolidation of Hindu voters with the JD(U) in its camp now.
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NDA sources pointed out that BJP candidates had won in 2004 and 2009 polls when the JD(U) was their ally.
While the RJD is confident of retaining the seat and claims to have solid backing of Muslims and a section of Hindu votes after Kumars betrayal of their secular alliance, NDA sources said the BJP can win Araria if traditional JD(U) voters back its nominee.
Out of six assembly seats in Araria, two each are held by the BJP and the JD(U) while one each belongs to the RJD and the Congress.
The JD(U) had won the seat in 2010 when it was in the NDA and a win for its candidate will be a big boost for Kumar.
A majority of Dalits had said to have favoured the Bihar chief minister in 2015 but Prasad has made a determined bid to chip away at this support following Kumars decision to sever ties with him.
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