Deputy leader in the Legislative Assembly and senior JD(U) leader Shyam Rajak raised the issue during Zero hour and demanded from the PM to initiate action against MNS chief.
Rajak urged the House to pass a resolution to assail the statement of the MNS chief. He was supported by RJD leader Lalit Yadav.
Chief Minister Nitish Kumar was not present in the House at that time.
Raj Thackeray's controversial remark drew sharp criticism from legislators from all political parties, including BJP.
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Deputy Chief Minister and RJD leader Tejaswi Yadav slammed the MNS chief for the hate comment.
Tejaswi, who is the son of RJD President Lalu Prasad, made a scathing attack on the Prime Minister for his party-led government in Maharashtra for not initiating action against Thackeray for regularly indulging in "hate politics".
Union minister of state and BJP MP Giriraj Singh also came down heavily on the MNS chief.
"The country would not accept the language spoken by a mad man. He is talking in a language similar to one spoken by terrorists in Jammu and Kashmir," Singh said.