FIR against NRI husband can very well be quashed by filing a Pre-Quash LTR so that the NRI husband is able to learn best tactics to quash the false 498a FIR by NRI's so that these techniques and ways can be applied by him in his own cases.
There are more approaches to handle this situation by applying RTI's by NRI without coming to India and even getting responses online.
In that way, evidences can be generated too.
For example:- recently a case had been fought wherein a dentist wife of NRI claims that the NRI kept his documents and degrees with him and then got a below minimum wages act salary certificate from such a doctor whose name has been removed from the register.
such doctor-dentist duo i.e., employer-employee duo may soon be arrested read necessarily with indiacode.nic.in point no. 48 and several other pointers
case also suo moto initiated by the SHRC on directions from the NHRC
in such cases, ARREST WARRANT AGAINST NRI's WIFE is the need of the hour, ONLY THEN, these false cases against NRI husband may be solved at Zero Settlement Cost
pursuing the case against wife is more important than using pursuasive judgments of other high courts and fighting defensively
defense is the wrong strategy
offensive defence or u may call it as defensive offence may be the right way to close false 498a by NRI husband in india