Need Legal advice

Husband is NRI living in USA with H1b visa ( Green card appliation filled by his compny ) and girl is working private company. Husband annul income is nearly 140k $ wife income is nearly 450 K INR Marriage has solemnised 4 year ago in 2013. Husband has not did any visa file for girl yet. they live to gather only for 7 days. Husband has not meet till date to girl. Boy has not given single rs for basics need of girl till date. and boy and his family has taken (shridhan) gold and cloths which worth nearly 700k inr and they have denied to given back. Girl has put case on his husband and family 498a, Dowry 3 and 7, 420, 406, 114 in 2014. Boy has visited once in India 2017and police has taken him custody for 24 hours he went back USA with out meet girl. court has denied to take boys passport. Boy has extra material affair in USA and his current girl friend has denied to help to to put adulatory case on him. Neither boy nor girl has file divorce case yet. Now court and both lawyers are forcing girl for settlement to give divorce or go high court and take case back Girls is mine friend I do not want that she can give up after fight for four years. I have few questions about this case 1. How much maximum amount of alimony girl can demand for permanent settlement ? 2. if Indians law are not giving any alimony to girl then girl can file divorce in USA because USA court will declare to give 50% alimony to girl. (if she put case in USA does it create any issue for girl) 3. Girl want that guy should visit India once and sign divorce if he want...cause they stayed to gather only 7 days she doesn't want to lie court that they have tried to save marriage life. ( as required factor for mutual divorce) in this case what girl can do so boy can come India to sign divorce 4.if Girl want only legal judicial separation not to take divorce what is procedure for it? 5. Girl in-laws not giving back her shridan what is procedure to get back?