1. Motive: The entire film is based on a 20 minute flashback episode. The flashback should be very powerful enough to give good motivation for hero to do something. Though the flashback episode is alright, it doesn't give enough motivation to hero to rectify the attitude of fellow students. The flashback episode indicates that hero has made a terrible mistake and he needs to rectify it. Treatment for redemption oriented movie story should be different from what director has done in Josh movie.
2. Conflict point: Audiences will follow the story more intently if there is a proper conflict in the movie throughout. Conflict point is missing in this movie because hero and villain have no direct conflict between then. Hero, heroine or hero's friend doesn't get affected by villain in the film. Hence, the required emotion goes missing when hero confronts villain in the final parts of the movie.
3. Scenic order: It would have been more efficient if the film is narrated in a linear format instead of flashback format.
4. Unnecessary scenes: A tight screenplay doesn't allow any scenes that wouldn't make any difference to the movie if they were edited from the movie. For example, there is an eve teasing scene by rowdy students gang which lasts for 2-3 minutes. This scene would have been useful for the movie, if there is another eve teasing scene at a later point of time during which hero shows a remedy. There are a few scenes like these which added to the runtime of the movie.