your wife can withdraw DV/maintenance case but she cannot withdraw 498a case if the case reaches the evidence stage,
you have to approach the concerned High Court to quash the proceedings,
my advise is to first file the Mutual Consent divorce case, and make payment of 50% amount on first motion, then ask her to withdraw DV and Maintenance on the same day,
immediately, on the next day, approach the High Court for quashing the FIR and get it done before the second motion, which will be recorded after 6 months of the first motion of MCD,
don't forget to draft an MOU before approaching Mutual Divorce, which is the most essential and important part of a Divorce case,
some basic points to keep in mind and put in writing through an MOU before filing the petition for mutual consent divorce are custody of kids, distribution of assets (movable/immovable), quash/withdraw of pending litigation if any, Maintenance (present/future), Alimony, mode and time of making the payment, streedhan, future litigation, etc.
also annexed MOU with the divorce petition,
1. Yes, MCD can be filed before the withdrawal of 498a/DV
2. MOU will help you in such a scenario
3. MOU will do the needful
4. MOU
5. MOU