If you ready to pay them 10lacs, get this marriage dissolved by way of mutual consent divorce. The whole process will take about 7 months. You lawyer can also attempt to get the cooling off period waived off.
In case you do not wish to pay, keep pursuing the contested divorce that you have filed but since they are aware of this case already, they will put in appearance and contest the case; and in such a scenario, the proceedings may take 2-3 to conclude.