What to do if on an anonymous complaint both husband & wife are hared, humiliated & mentally hared?

the anonymous complainant levels false but serious allegations on the character of my wife-involving her officer. We both are working in same department. .Without knowing the credentials of the complainant, the next officer who came after him, issued notices to us, transferred us, the one who came after him initiated enquiry against us.. (The enquiry officer has asked to file the complaint in absence of the complainant)..our service record is excellent but for last more than two years the humiliation, harment, mental agony is haunting us...our health and family life is deteriorating. ..because of this my wife has tried to end her life...sometimes I also wish to kill those who are responsible for this....but on thinking of our two little minor daughters and my aged parents..I stop thinking it... but its becoming unbearable...where should we go..what should we do..its an irony. we are working in Judicial department..we r waiting for justice.. but we have/expect no justice..HELP US