I don’t think the grounds mentioned by you would make out a case for defamation. Further, it is 33 years too late to raise this issue.
Moreover, the following three Exceptions mentioned in Section 499 of IPC (which defines defamation) may directly or indirectly take care of something which has said in a court proceeding, thereby excepting such act from being defamation:
“Fifth Exception.—Merits of case decided in Court or conduct of witnesses and others concerned.—It is not defamation to express in good faith any opinion whatever respecting the merits of any case, civil or criminal, which has been decided by a Court of Justice, or respecting the conduct of any person as a party, witness or agent, in any such case, or respecting the character of such person, as far as his character appears in that conduct, and no further.
Eighth Exception.—Accusation preferred in good faith to authorised person.—It is not defamation to prefer in good faith an accusation against any person to any of those who have lawful authority over that person with respect to the subject-matter of accusation.
Ninth Exception.—Imputation made in good faith by person for protection of his or other’s interests.—It is not defamation to make an imputation on the character of another provided that the imputation be made in good faith for the protection of the interest of the person making it, or of any other person, or for the public good.”
Dr. Ashok Dhamija is a New Delhi based Supreme Court Advocate and author of law books. Read more about him by clicking here. List of his Forum Replies. List of his other articles. List of his Quora Answers. List of his YouTube Videos.