- Your grand mother ,parents should approach the High Court for getting the FIR quashed by filing an application under Sec 482 of Crpc on the following grounds-
1.The Acts or omission on the basis of which the FIR has been lodged does not constitute an offence.
2.The Offence for which the FIR has been registered has never happened;
3.The FIR contains merely baseless allegations without any reasonable ground to prove an offence.
- Specially your grandmother should file a criminal application against your Aunt and her husband before the Police commissioner of your jurisdiction under Senior Citizens Act for harassment.