What would the alimony amount be in such a case?

My husband is divorcing me. He has a yearly net profit through his various business of over 15 crores, and probably much more than that. I have proof of some of the income, not all of it.......... but a lot of the proof should be available through company records which I am assuming are publicly accessible. We are both Hindus. I don't have any income. I have some minimum savings and no assets. I have 3 questions: 1) What kind of alimony range would be probable? My husband wants to give me the least amount possible, and is much more knowledgeable about law than I am, and has been access to much better lawyers. 2) What is the usual or probable time frame for resolution of such cases? 1 year, 2 year, 5 years? If the court awards me an interim amount until the finalization of the case, what would the interim amount be? 3) Thirdly, is it possible to charge the fees of my lawyer and other legal fees to my husband? Apart from the above questions, I welcome any and all advice, as this entire thing is causing me a lot of distress. I know a lot of the questions above can be answered "it depends". If you need any details, please feel free to ask me. I was looking for rough ballpark estimates.