I am thinking that punni will get her hands on the CD's and somehow it will be misplaced. Mittal will not be able to show any evidence against Onir in the court.
Mittal will not be able to get punni to get sulo to sign over her property to him as she would now know what type of business he is into and would use it to her advantage.
Punni will blackmail Purvi into revealing the truth to her about the baby swapping but i do not think that arjun will ever find out that the baby is his and purvi's