What I mean if one of the students (or moreso their parents) targeted on iitsocial feels vindictive enough and has deep pockets (still fairly common at top IITs) they could easily file an FIR and force IITD admin to respond.

Admin and (though he doesn't realize it) the student both have an incentive to get this resolved quietly and under the table - admin becuase if this somehow blows up they will end up getting severe flak and the student (even though he doesn't realize it) because if this issue blows up he will be made an example by admin to show that they did something.