Need urgent advise

My wife has a past criminal case. She was sentenced to suffer 05 years rigorous imprisonment in a burgeling case. After her discharge from the jail she changed her name by affidavit. After onward I got married her. Now the situation has been changed. She is likely to file 498a/406/307/125/ etc against me and my family. My specific question is how to reveal her past name or the said affidavit copy.

This will help me lot for the annulment case. Never she or her family had informed us about her past. Some how I have came to know. Bu the problem is to prove herself by her current name. Pease advise me. Is it possible to have that affidavit copy? I have got the said judgement also (burgeling case).

-Regards R.B