Mahagathbandhan's CM candidate Tejashwi Yadav lashed out at BJP and Bihar CM Nitish Kumar.
Tejashwi mocked BJP saying that the world's largest party does not have a CM face.
The RJD leader said if he's inexperienced then why are they using full force against him.
"BJP is the largest party in the world but they don't have a CM candidate," he said.
Tejashwi added, "I have been an MLA, Leader of Opposition and also held deputy CM's post.
My five years of experience is equivalent to 50 years of experience." Earlier, Tejashwi challenged Bihar CM to debate on any of his achievements in last five years.
The RJD-led Mahagathbandhan in Bihar comprises Congress and Left parties.
BJP-JDU alliance has agreed upon sharing 121-122 seats in the assembly polls.
Bihar elections will be conducted in three phases starting October 28.
Results of the state assembly polls will be declared on November 10.