Repeated threats by wife to suicide amounts to extreme cruelty; HELP

we are (Hindu) married since 2 years 5 months 21 days and from beginning onwards wife has Mental illness, ocd, Multiple personality disorder and takes Anti-depressants with no interest in life. She said had depression and on medicines before marriage also but never said this to us and hide silently by their parents n married. We both discussed on this as our marriage is not working and she has agreed and signed tat we both mutually agree to divorce with consent and move on. Now making cruelty acts after staying in parents home left to hyderabad. Her parents least bothered about her and dont care. Now that I am being harassed and getting suicide threatening messages on Whatsapp everyday, and using vulgar language about our Army family by my wife. She is repeatedly threatening me that she will die if given a divorce, and false allegations. I have informed Hyderabad city police what else can be done as I want a divorce smoothly. Any legal personal here can please advice.....