Rajkumar Rao's persona and a peek into the life of a twisted and dreaded terror monger pulls you to watch this movie. You want to like this film, but you can't.
From the word go, the screenplay starts making you feel uncomfortable. Non-linear format is supposedly slick, but in here it comes out vague. The 'movie', or rather written facts shot on AV format, seems to be soulless like omar. One may try to justify the oddities in between to remain on the seat -- oddities like the depiction of omar (Rajkumar Rao gets into his skin) which was just short of justifying his actions; like the graphic depiction of Mr. Daniel Pearl's end (which was stretched beyond belief); dealing with Kashmir issue; omar's father's role, etc.
The Director has wasted the opportunity to make a gripping film, until and unless this is what he really wanted! A movie on such a topic generally has two treatments, one which introduces the character and makes you realise the dangerous environment which makes people slip into a world of terror as well as the ensuing hopelessness, all set in a typical drama format. Second, a biography which encapsulates the above wisdom discreetly. The disclaimer in this movie says that the movie does not intend to glorify terrorism, but there is not enough evidence in this movie to hold that claim strongly.
Apart from the script and screenplay, Rajkumar Rao's acting makes you hate him, where he wins. He does not have to prove that he is versatile, he simply reassures you that in this movie.
All in all a depressing, confused, soulless movie, just like omar.