Of the six constituencies, the RJD won only in Vaishali, thanks to the appeal of its candidate Raghuvansh Prasad Singh.
A total of 90 candidates, including five women, are in the electoral fray Monday. Polling will be held in 8,582 polling stations. More than nine million electorate is eligible to vote.
Addressing meetings in all six constituencies, BJP's prime ministerial candidate Narendra Modi sought to emphasize that he came from an extremely backward caste.
He also repeatedly targeted Congress leaders Sonia Gandhi and Rahul Gandhi and Congress campaigner Priyanka Gandhi for their remarks blaming him for "neech politics" remarks.
