What would have happened?
Sanchi did not know that she was raped. Sanchi would have come down and ankita would have acted as if nothing had happened. Next morning, sanchi would have gone to her home and behaved as usual. Ira would have been happy that her daughter had good time at the pajama party.
Saurabh would have used the mms clip to make sanchi his sex slave. Sanchi out of fear, would have kept quiet. And sanchi might have missed her period and go for an abortion with ankita's help. The story would have continued in this way until Saurabh gets fed up of sanchi and openly flirts with other girls in front of sanchi. Sanchi gets so angry that she may try to kill Saurabh. And then the court drama.