"It is time for all of you (poor and downtrodden people) to unite behind us and ensure Janata Parivar's victory in the crucial assembly polls later this year to stop BJP's juggernaut in Bihar," he said at Prajapati Samaj Chetna rally at the Gandhi Maidan.
Describing himself as flag bearer of social justice all his life, Prasad made a passionate appeal to the poor and downtrodden people to treat Janata Parivar as their "real home" for all times.
"All my life, I have fought for the rights of the backward and poor people starting with implementation of the Mandal Commission report to provide for 27 per cent reservation for the OBCs in government jobs in 1990," the RJD supremo said.
Seeking to establish an emotional chord with the people belonging to Kumhar caste known to ply trade in pottery, Prasad described BJP as a kankar (pebble) and asked them to throw it out as they do to such objects from soiled earth while making pots and related products.
With the blessings of poor and backward people, Janata Parivar will sweep the assembly polls with two-third majority and will form the next government in Bihar, Lalu claimed.
The leader implored his traditional vote bank to ensure that a resurgent BJP under the leadership of Prime Minister Narendra Modi meets a waterloo in Bihar.
Launching a frontal assault on BJP for harping on "Jungle Raj - 2" to nail the Nitish Kumar government on law and order situation, Prasad said the saffron party has become jittery at the prospect of unity of Janata Parivar constituents which obviously does not bode well for its future.
"We have come together under one banner to take on Prime Minister Narendra Modi and ensure the beginning of the end of BJP's resurgence from the battleground of Bihar," the RJD supremo said.
He also expressed his displeasure at BJP leader Sushil Modi who had slammed the coming together of JD(U) leader Nitish Kumar and RJD chief Lalu Prasad Yadav as a "political drama".
Lalu said that such snide remarks sullied Bihar's image so much so that no investor would like to come over here for business.
The RJD supremo also mocked the Prime Minister for his 'Achche Din' and recovery of black money, generation of two crore jobs for youths among numerous other promises made during campaigning for the general elections last year and said that none of the promises have been kept so far.
Instead of fulfilling those promises, the NDA government has gone back on its commitments with the BJP president Amit Shah describing the black money issue as "jumla" (idiomatic expression), Prasad said and charged the Centre with slashing funds under different schemes.
BJP chief Amit Shah earlier this year said that the promise by Modi to deposit Rs 15 lakh in bank account of every family was just an "electoral gimmick".
The RJD supremo further attacked the Centre for mooting a land acquisition bill under which the farmers will be forced to part with their land to industrialists at throw away price.
Dissecting the reason behind NDA's unprecedented success in parliamentary elections last year, he attributed it to massive propaganda carried out by the Sangh Parivar using mobile phones which, he claimed, scuppered the game plan of the rivals.
The RJD supremo took a smart phone and gave a mock drill as to how the Sangh Parivar used mobile phones to deadly effect to lure the people into voting for the NDA at the hustings by resorting to sustained propaganda in every nook and corner of the country.
Describing the Sangh Parivar as rumour mongers and propagandists, Prasad asked the Janata Parivar supporters to guard against sustained propaganda by the Sangh outfits during assembly polls in Bihar.
The assembly elections in Bihar will take place during festive season of the Hindus and Muslims, he said, adding that the Sangh Parivar may try to vitiate political situation in the state by resorting to propaganda for electoral benefits against which all of you must stand guard.
The RJD supremo rebuked the former chief minister Jitan Ram Manjhi for saying that he will go with whomsoever who gives him seats in assembly polls and said that Manjhi was behaving like the LJP supremo and Union Food Minister Ramvilas Paswan whom, he had earlier described as 'weather cock'.
Interestingly, senior JD(U) leader and Bihar Chief Minister Nitish Kumar, who was also scheduled to attend the rally cancelled his visit at the very last minute due to unspecified reasons.
Amid rumours spreading thick and fast that all was reportedly not well between the two leaders, the RJD supremo scoffed at such speculation saying that all was well among the Janata Parivar leaders.
The Chief Minister must have cancelled his visit to the rally due to unavoidable reasons, Lalu told the gathering.