Complex sentence: Shashank's dad warns Prateeksha that she has to go away from Shashank's life otherwise he will expose the CD, on which Suhani's death has been recorded, which shows that the car which hit Suhani was Raunak's.
Split into simpler sentences: Shashank's dad warns Prateeksha that she has to go away from Shashank's life otherwise he will expose the CD. On the CD has been recorded Suhani's death, which shows that the car which hit Suhani was Raunak's.