Alimony

We have been married since 10 years and blessed with son (6 years). 5 months back she left my rented house, without my information with help of her family members. (this is second time, after first time, anyway after some months, after a discussion with our wellwishers , i have taken her back). Now,she filed a DV and a maintenance case against me in a family court, claiming 40K maintenance. My earnings are 68k take home. all false allegations she filled against me like, not giving food, cloth, using vulgar language, beating her, demanding money... which are all false, and i stand to my word. She has pursued B.A. and B.Ed in distance education. We have attended first counselling, where i agreed to take her back and take all responsibilities, where she clearly denied not to come back. counsellors have given another 20days time to think again, and to come back. but it does not seems to be fruitful. I have also filed a section 9 to take her back. In this situation, how can i defend all these false allegations and the huge maintenance claim.