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.
A series of recent developments have unnerved the ruling JD-U which has a significant support base among the Muslim community.
Nitish Kumar said that he will not allow anyone to consume, sell, trade, manufacture or smuggle liquor in the state.
RJD) Chief Lalu Prasad targeted Bihar Chief Minister Nitish Kumar and said that he was the most arrogant person in the country.
CM Nitish Kumar said, "We are of the view that caste census should be carried out across India. Earlier also, a delegation of 10 parties had met PM Narendra Modi to press for a caste census. Within a few days, all the parties in Bihar will work out to conduct a caste census in the state context. I am hopeful that there will be a consensus among all the parties."
In a two-page letter, Tejashwi Yadav has pointed out the problems arising every year due to the floods in more than 20 districts of the state.
