Jayant Sinha, son of former finance and external affairs minister Yashwant Sinha, said in an interview that the BJP's mistakes were nothing compared to the blunders by Chief Minister Nitish Kumar.
"You have to take the entire state and other (factors) into account while distributing tickets."
The MP from Jharkhand who is campaigning for the Bharatiya Janata Party (BJP) in Bihar went on: "But what about Nitish Kumar who has made a series of mistakes in last two-and-a-half-years?"
Listing these, he said the people of Bihar won't forgive the Janata Dal-United (JD-U) leader who heads the Grand Alliance that also includes Lalu Prasad Yadav's RJD and the Congress.
"Parting ways with the BJP was his first major mistake. It was a crime. Again he made a mistake by joining hands with Lalu Prasad, who is a symbol of 'jungle raj'," Sinha said.
"Removing Jitan Ram Manjhi from chief minister's post was another mistake. And last but not the least, he joined hands with the Congress," Sinha said.
Sinha also felt that the same party must rule in New Delhi and in states for better coordination vis-a-vis good governance.
"If the BJP forms a government in Bihar, it would succeed in ushering in the state's development since the state government would function in tandem with the BJP-ruled central government," he said.
He cited his home state Jharkhand to back his argument.
"Since the formation of a BJP-led government in Jharkhand, we have done lots of development work there with the support of the central government. See where is Jharkhand today in comparison to Bihar."
Sinha also took a dig at the Congress, saying the grand old party didn't have the interests of the nation at heart.
"For them dynasty is supreme. Rahul Gandhi is an example of it, he said.
He wondered if Congress had no other capable leader. "How long will they ignore the reality? People of this country understand everything," Sinha added.
The Bihar elections will end on November 5. The results would be known three days later.
Sinha claimed that Delhi -- where the Aam Aadmi Party (AAP) led by Arvind Kejriwal routed the BJP in February -- won't be repeated in Bihar.
"Delhi's elections were special. There was no anti-incumbency against Arvind Kejriwal. And one thing he did very cleverly is he went to public and sought apology for his mistakes. But Nitish never did that. So the people of Bihar will not forgive him," he said.
Calling former chief minister Lalu Prasad a convicted criminal, he said that it was unfortunate that Bihar had a leader like him.
"Laluji has been a symbol of jungle raj. He can never rise above family and caste issues. See his election speeches and his remarks. It's tragic," Sinha said.