"He nourished the ambition to become the PM and...Today left to knock doors of the PM... Soon he will be relieved of the CM's chair," Paswan said in a sarcastic remark on Kumar at a LJP workers' meet here.
Paswan's jibe at Kumar was in the context his meeting with the Prime Minister yesterday and his urge to provide special financial assistance to compensate the loss accruing out of the 14th Finance Commission recommendations.
He also sought to puncture Kumar's claim that after BJP's loss in Delhi to AAP, it would meet the same fate in Bihar in the Assembly polls later this year.
"Bihar is not Delhi. Here people stick to the decision once taken," he said referring to the overwhelming support the BJP and NDA allies got in the general elections in Bihar helping them win 31 out of total 40 Lok Sabha seats in Bihar.