Hi
You will have to defend the matter in divorce çourt.
Since you also want divorce.initiate a mediation in the court.
Your lawyer should ask for a mediation when you can be present.
Once you agree for a settlement withyour wife,with her supporting mutual affidavit you can get the FIR against your mom and uncles quashed in the high Court. When parties end their dispute on mutual consent divorce high Court accept the plea of quashing the FIR
This can be done when you discuss a consent term in the divorce court.
Divorce case will drag as long as you stay away.if there no FIR against you visit India and try for a settlement. If an FIR,first get anticipatory bail then come down.
If there is no way to end it amicably
Merit of your case depends on the allegations in the divorce petition and the statements in the 498A chargesheet and how she will prove those.
You have the options either defend it fiercely or make a settlement and end it with a mutual consent.this your lawyer should negotiate with their and make a move in the court.
It is advisable to end it do whatever you can for that so that your mother is safe and you can be in US with peace.