The film is slated to be released in December 1.
Keeping in view protests against the movie by some organisations, the force should remain alert especially at all malls and cinema halls, with anti-riot equipment, Singh said in directives to all district police chiefs.
"Enough police force should be kept in reserve so that it can be deployed when needed. Local intelligence units should also be alerted to keep an eye of unscrupulous elements so that effective timely action is taken," the DGP said.
"In view of the (possible) dharna, agitation, traffic jam, arsoning - all measures should be taken in advance and strict legal action should be initiated against those involved in such acts," he said.
Bhansali is facing the ire of various groups, who allege improper "depiction" of legendary queen Rani Padmavati.
Padmavati stars Deepika Padukone in the titular role, Shahid Kapoor as Maharawal Ratan Singh and Ranveer Singh as Alauddin Khilji.
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