The RJD leader further said that ''it is not in their culture to say something to someone we respect'' but added he will write a book and explain everything.
In 2019, both the BJP and the JDU had contested on 17 seats each.
The INDIA alliance must draw some succour from the response to its rally in Patna on Sunday.
Lok Sabha Speaker Om Birla, Home Minister Amit Shah and Uttar Pradesh Chief Minister Yogi Adityanath also extended birthday wishes to Kumar.
While speaking during the Bihar floor test, Yadav asked how will JD(U) MLAs face public after Nitish Kumar's three oaths.
"Nitish Kumar 'Yadav' has talked about maximum recruitment in all the departments," the RJD leader said.
The second phase of the survey, which is likely to be held from April 1 to April 30, will collect data pertaining to people of all castes, sub-castes, socio-economic conditions, etc.
Kumar targeted the BJP leaders, and said, "BJP leaders should go in public and make people aware about the benefits of liquor ban in Bihar."
Bihar excise Minister Sunil Kumar on Wednesday "confirmed" six people have died after allegedly consuming spurious liquor.
The defeat of Kurhani may have a big impact in future elections, especially the 2024 Lok Sabha and 2025 Assembly election.
