How to avoid paying Alimony to Wife

Hi, I am 36 yrs old working as Sr manager in an MNC, my Wife who is Sociopath has been torturing my Family (70 yrs Old parents+Me and Even Kids), her day to day behavior consist - staying out from home for 4-5 hrs without any information or update, being a housewife no cooking, no household work, not even looking after kids, as stated above just to gain sympathy and attention she hit herself or create such scene or fake THREAT of suicidal attempts (Already attempted 6-8 time just to create havoc and panic situation), due to her behavior we have stopped talking and interfare into her life and lifestyle, previously apart from day yo day expenses I even used to pay 5000.00 INR for maintenance of lief style. which I have stopped now as her Harsh and Humiliating behavior has now been turned aggressive and violating. Nevertheless, its pretty common now for her to get her work done by using abusive lines and giving threats to us, (Example - if you dont fulfill XYZ requirement I will go to Police and inform that you and your parents have beaten me, immediately she even gets doctor's certificates) - please understand the sick mentality and level of crook mindset she holds. Even when kids are Sick she dont even look at them, or feed them as outside life for her is better than such homely tasks. Just to get rid of her I even have put down my papers, and now moving back to my home town, since my town is not equipped with high level gowdy lifestyle, Malls, shopping complex she preferring leaving us and kids on our destiny and she stayed back in present CITY, where she could fulfill her requirements. Just to keep you informed her sisters, mother, father all have same cheap mindset and for them their daughter is doing right thing by torturing kids, parents and her husband. You can understand the level of pressure and Mindset I have now which made me to surrender my Job so that she cant blame or snatch money from me by Giving threats of Legal consequence, Police, and Alimony demand. As stated now we are leaving to my hometown without her (being Sociopath she is not at all bothered), please let me know following: 1 - let me know her future prospects of getting alimony from me? 2 - I know she wont but - getting and asking custody of my small kids (7 and 4 yrs respectively)? 3 - Now since, all we are moving to different cities, she is moving back to her city, My parents, me and my both kids are moving to my home town - FTI - we got married in her City, Marriage was registered in Vishakhapatnam, and now we are in Mumbai. so question arise - what if she files a case from her city , would I be asked to attend and get harassed every time by local Police and court or case can not be entertained as we are presently at Mumbai and will disburse in next month. I just dont want getting harass by her local court of her city and Police (which I am sure they would have strong contact). 4 - Will filling NC to Local Police station here in Mumbai help? Please help