Divorce Case

Hello Sir, I am from wife side. I am expecting divorce from my husband due to mental cruelty. He and his mother torturing me for dowry money which my father deposited in bank on my name and torturing me as i need to give my entire salary to them and i should just take money for my expenses. He never take care of me and my son and never bare a single expense of him and mine. Even i am paying rent of the home they put lot of conditions in home as i should not see TV in home, i should not switch on light even though it is dark. I should bare my son's expenses alone they are not even ready to bare even single rupee.He and his mother never support my job but always expect my salary.They both are together planning and torturing me in different ways.I am working in a corporate company he is also working in corporate company. My salary is 50000 after deduction of taxes. Please let me know how much alimony i get from my husband.He is even heart patient i only applied insurance for his surgery and through that he got 7 lacs. I paid even advance for home 80000. Please let me know can i get marriage expenses from him as they did not spend even single rupee for that. He also ready for divorce mutually but not ready to give any alimony for me or for my son. Please let me know how should i proceed at least to get expenses which i did for them even though not ready for alimony.