Dehradun: The 'impostor' controversy at the National Academy of Administration in Mussoorie today saw the institution giving a clean chit to its top official on the allegations by a woman who claimed that he was being shielded and threatened to commit suicide if she did not get justice.

The woman - Ruby Chaudhry - had claimed that she stayed at the institute with the help of a fake ID card allegedly issued by Deputy Director Saurabh Jain but he said the allegations were baseless and malicious and he will file criminal defamation case against her.