Chandigarh, Sep 16 (UNI) Punjab Chief Minister Bhagwant Mann’s wife, Dr Gurpreet Kaur, has filed a criminal defamation complaint in a Chandigarh court against Shiromani Akali Dal leaders Bikram Singh Majithia and Harsimrat Kaur Badal and Congress MLA Sukhpal Singh Khaira over allegations linking her to an alleged Rs 5-crore demand to help an accused in a rape case.