Maintenance or alimony calculation

Dear Sir, I'm an NRI working in Qatar and my wife also working here under my visa (family visa).We both are here in qatar for last 14 years after our marriage. We have two kids boy aged 12 years and girl aged 4 years. Now we are planning to get divorced and how much i have to pay for maintenance to my wife? Please note that she cannot come back to qatar and work here under my sponsorship becasue i have to cancel my sponsorship to her after our divorce is allowed by indian court. But she is educated with double masters and can work in mumbai where she is born and brought up. Can she claim from me the accomodation expenses and living expenses in addition to the kids expenses?? She already having 3 apartments in her name in mumbai and all are on rent. The rental income is going to housing loan which she took for purchasing the apartments. Can she tell she dont have to work and I have to pay all the related expenses?? Also her parents 2 bedroom flat is also available for her to stay but whether if she denies that court will ask to pay for her accommodation expenses as well?? Please help me