Urg guidance req. u/s 498a, 323, 120b and 494

The divorce through notary is of legal standing. You need to meet the charges on merits.

notarized document is also valid and relevant document for the case if the said notarized accordance with law on documents. No Document can be held invalid for mere non registration. Your Document is fully is valid and can be enforced if need arise.

File RTI in her place where she works in government sector. Get details of her designation and salary 

Apply for anticipatory bail from sessions court 

Write a letter to her senior boss in her job where she works that she is harassing you and your family members 

You should have never done separation through notary. You should have filed divorce through court and get separated from her

Notarised settlement is meaningless.

When she is staying away for the last 6 years the complaint u./s 498A, 323 and 120B IPC can not sustain and shall be dismissed. Surprise to know the complaint has been taken cognizance to lodge FIR. Unbelievable.

However, if FIR has been lodged engage a local prudent lawyer and move to High Court u/s 482 CrPC for quashing.

I am sorry.  My earlier suggestion may kindly be read as "Divorce through notary is of no legal standing.  The error is regretted. 

The error has since been corrected. 

As the given facts indicate, Divorce has not happened. You have committed bigamy.  You are at receiving end.

Mere bigamy doe snot provide ground for 498a.  You need to meet lawyer.

filing RTI on her departmental will just be childish act.  Complaint to her deptt will also be futile and rather can be assumed as harassment as the department has no jurisdiction to stop her from asserting her rights.  So better not to add evidence against you.