1. If your wife is ready and willing to withdraw all the complaints against you, then she may have to file an affidavit before the high court where the quash case is going on stating that she has no objection towards the quash of the said criminal complaint against you and she has to be present before court to affirm this affidavit.
2. The non-compoundable cases cannot be quashed by the trial court hence only high court has power under section 482 cr.p.c. for this.
3. Let your wife file her affidavit before court as suggested, after that if the high court quashes the case then there is no necessity for the passport office to pursue the case.
4. The other important points would include the quantum of amount, mode of settlement, interval between the installment settlement, future cases against each other and any other issue as per prevailing circumstances.