"Modi claims he is the adopted son of UP...He will lose his aura with the defeat of his party in these Assembly polls," he said.
The RJD president was here to campaign for the SP-Congress alliance candidate Rakesh Singh from Harchandpur seat.
Lalu said Modi looks like a twin brother of US President Donald Trump and nobody knows what he will do next.
Training his guns at the BJP national president, he said when Amit Shah got stuck in a lift in Patna and he charged the people of Bihar with hatching a conspiracy against him.
More From This Section
Lalu said both SP chief Akhilesh Yadav and Congress Vice President Rahul Gandhi were committed to turn Uttar Pradesh into 'Uttam Pradesh'.
"If BJP faces defeat in these elections it will be the end of the Modi government," the former Bihar Chief Minister said.
Alleging that former Prime Minister Atal Bihari Vajpayee has been put on intoxication and sidelined from politics, he demanded an enquiry.
"On the Godhra riots, Vajpayeeji had scolded Modi but L K Advani had saved him...But Modi has marginalised Advani too," he added.