Rohit's real murderer

Who actually killed Rohit?

It could be Vikram because he has been controlling his anger towards Rohit for long. He is aware that Rohit has been harrassing raveena and siddhi told him the day before to take matters in his hand and help raveena.

It could be Raveena. Rohit had called her to come spend the night with him after which he will free Vikram of all charges and give the shares back too. Raveena had decided to meet him and end things forever. Maybe she killed him or had an altercation and is unaware that he got killed in the process.
My vote is for raveena.

Could be siddhi who actually unknowingly hit him which is very unlikely. She must have hit his dead body but then why did she not see the body.

Could be someone else altogether. Rohit got drunk and was hit by some other car.