My wife's friend lodged a false assault complaint on her !

My wife had an affair for 6 months with her friend. She accepted her mistake and finally decided to put an end and restart a new life with me. As soon as he came to know that, The guy started harassing and threatening her not to end the relationship. (P.S - The guy is married too and he is quite influential in the city) . Things he has done to disrupt her life as follows : - 1 - The guy presented a Bank cheque on my wife's name - Luckily It was bounced as a Signature mismatch. (We don't want to file a complaint because she was afraid that things might have become even worse) 2 - Using his political influence and putting pressure on poor cops he filed a false Assault CSR on my wife. ( Since he is not able to file FIR , trying to take court direction to remanded her. Looks like cops are supportive to us ) 3 - The guy is also playing tricks and diverting the cops saying she woes 25 Lakhs to him, which is a total lie. In the view of my wife safety and security, I would appreciate if anyone could help me to handle this case My whole family is devasted now :( Thanks in advance