@Author
This is certainly a well knit racket run by your wife and her parents with the help of police officers.
Just take a voice-cum-video recorder and take any trustworthy and matured friend/relative with you. Negotiate with them as ask them what is the issue. As they do not know you are recording the chat, they would threaten you and demand money.
When you have 2-3 such recordings, then go to a Sessions Court in Faridabad, and file for Anticipatory Bail based on this recording. Tell the court you are being framed cause you have asked for divorce and child's custody so now your wife is threatening you and planning to file a false case against you.
If possible collect other evidence also..
Any lawyer who is enrolled with All India Bar Counsil is entitled for arguing any case in any court. But generally local lawyers knows the judges by face and judges also prefer listening to their favourite lawyers. Still, if you case if genuine then the judge will no no problem listening to your advocate may be he from Delhi or Tamil Nadu.
//peace
/Saurabh..C