1) FIR can not be withdrawn.
2) the better option is to get it quashed from the concerned High Court in view of the compromise arrived at between the disputing parties.
3)In Gian Singh Vs. State of Punjab & Anr., JT 2012 (9) SC 426, it was held:
However, certain offences which overwhelmingly and predominantly bear civil flavour having arisen out of civil, mercantile, commercial, financial, partnership or such like transactions or the offences arising out of matrimony, particularly relating to dowry, etc. or the family dispute, where the wrong is basically to victim and the offender and victim have settled all disputes between them amicably, irrespective of the fact that such offences have not been made compoundable, the High Court may within the framework of its inherent power, quash the criminal proceeding or criminal complaint or F.I.R if it is satisfied that on the face of such settlement, there is hardly any likelihood of offender being convicted and by not quashing the criminal proceedings, justice shall be casualty and ends of justice shall be defeated. The above list is illustrative and not exhaustive. Each case will depend on its own facts and no hard and fast category can be prescribed