Mental Harassment by my wife and my brother in law by sending repeated complaints in my department

My wife has filed Divorce case and Maintenance Casein family court of two daughters residing with her.I have also filed maintenance case against my wife of one daughter living with me as my wife is also in Government Job.. Both cases are still pending since 2021.In the meantime interim order of payment of 10,000/- has been passed by Family Court against me.Now case is in evidence stage and I am giving evidence in the family court.Now, a days my brother in law who is also doing practice in District Court of same city has been sending repeated complaints in my department of FIRs lodged in 2010 against me section 498 by same lady,as I was earlier married to same wife in 2009 and taken divorce in 2012 with her in judgement passed by Hon'ble Punjab and Haryana High Court Chandigarh.But three years of passing divorce she and her brother, mother and father approached my parents and to me to forgive them and to re- marriage with same lady.But now both are sending false complaints one after the another in my office which has caused me severe Mental Harassment and tarnished my image in my department as well as public.Now what action can I take against both of them?