My in law filed false 498A case against me now they want my form 16
Has the PIO sought your comments (as a third party) in writing ?
If yes, then you can just reply back saying that your salary details have to be suo-motu disclosed under Sec 4(1)(b)(x) of the RTI Act.
The applicant can be asked to check the Sec 4 disclosure of your college.
If your college has not made this type of disclosure, they should do it now, since they were supposed to do it by 12th October 2005 - more than 5 years ago.