He also expressed his resolve to unite the opposition against BJP in the next general election.
Attacking the Narendra Modi-led government at the Centre, the RJD supremo predicted its "fall before completing the five-year term".
"I am an astrologer and predict that the Narendra Modi government will not be able to complete its five-year term," he said.
"Tell me which 22 places the IT conducted raids," he told reporters here, three days after the raids were carried out on May 16.
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Lalu, who has been under attack from BJP leader Sushil Kumar Modi for being involved in alleged corrupt land deals, termed the charges against him as "propaganda" by the saffron party.
"All the details of properties (belonging to him and his family members) are with the IT as we file returns regularly and also with the Election Commission," he added.
He also attacked the BJP for alleging corruption in purchase of soil for the Patna Zoo from a mall built by a company linked to his son and Forest Minister Tej Pratap.
"Kaha ghotala hua hain batao (tell me where the corruption has taken place)," he asked.
On the political front, the RJD chief said the preparation is underway for a "huge party rally" here on August 27, and he has been talking to prominent leaders of the non-BJP parties to participate in it.
On the violent clashes between RJD and BJP workers on May 17 here, Lalu said he has appealed to his party workers not to indulge in such activities.
He, however, blamed the BJP workers for attacking the RJD workers with swords and empty beer bottles during the clash.
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