Next day when Serene went to college, she got to know that after getting the news of Sam being arrested by them, Rishi ran away. Soham, Harry and Ishaan already sent their people to find him. Whereas when Sam's parents got to know about Sam, they couldn't do anything in retaliation.
Their family position wasn't that low. And they are powerful. But in front of Shetty, it's nothing. Not just Shetty enterprises stood against them, but Ishaan Mehta also stood side by side with that decision by Soham.
And definitely not to forget that they offended no one but Harry's sister. If they tried to support Sam, Harry with Soham would destroy them.
As for punishment, Harry with Soham decided on a one week torcher for them. And for shame they decided to shave their heads.