Kumar is the latest political leader to speak on the Sanjay Leela Bhansali film, which has been in the proverbial eye of the storm over allegations that it distorts history.
"I am not in favour of the movie's release until its producer, director and all those who are associated with it offer a clarification putting the controversy to rest," Kumar told reporters.
He did not specify what clarification he was looking for.
Bharatiya Janata Party governments in Rajasthan, Madhya Pradesh, Haryana, Uttar Pradesh and Gujarat have either said that they will ban the film or demanded that "objectionable content" in it be removed.
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The lavishly mounted film, starring Deepika Padukone, Ranveer Singh and Shahid Kapoor, has been facing the wrath of various Rajput groups and political leaders, who have accused Bhansali of distorting history.
However, Bhansali has said in an appeal that there is no dream sequence and it is all a rumour.
Historians are divided on whether Padmini, who finds mention in the 16th century epic poem "Padmavat", actually existed.
Asked whether any instructions had been issued for a ban on the release of the movie in Bihar, Principal Secretary (Home) Amir Subhani told PTI earlier in the day that they had received no such information.
As the chief minister spoke his mind on the controversial film, BJP MLA Neeraj Kumar Singh reached the Bihar Assembly premises with photographs of Bhansali and Samajwadi Party leader Azam Khan garlanded with shoes and slippers pasted on his vehicle.
Singh told reporters that he was a Rajput and could not tolerate any insult to Rajput sentiment.
"In the trailer of the movie, queen Padmini has been shown dancing, which is contrary to what history tells us about the legendary figure.
"I would have no objections if they had changed the name of the character. Filmmakers can portray a fictitious character in whatever manner they wish. But they cannot be allowed to portray historical figures in a distorted manner," the BJP MLA said.
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