I will assume you know about the real story and shall base the review on the movie only.
Pros
Good performance
not many annoying songs
Strong emotions
Tense, gradual build up
Good cinematography
Cons
Typical bollywood drama can’t be avoided
a love story makes its way into the story
Some over the top dialogues, bollywood style
Overall, I think the movie didn’t do complete justice to its source material. It should have avoided the typical bollywood drama.