First of all,the movie shows that the main villain character is from Bangladesh, but unfortunately, he cannot speak even Bengali. All the people, who speaks Bengali in the movie, use Calcutta accent not Bangladeshi accent.
Secondly, the story line is vague and week. In Bangladesh, drug lord has not that kind of influence over law enforcement agency that law enforcement dep. listen to the drug lord. Having said that, criminals sometimes give bribery only to avoid arrest but they no authority to give order to police to conduct or abort any operation.