Mental torture and cheating

Hello there, I have got with him on feb 2019, and just after 4days of marrige i came to know that he is having an affair with a married women and keep talking and meeting her. After a week of marrige we have gone for vacations and there I caught him with his watsapp msgs with that lady, and in the whole chat only one thing is mentioned that i will give divorce to my wife but i will not leave you. Also he has used very bad world for me like, "mujhe us chudail, gawar se shadi nai karni thi mere ghrvalo ne jbrjsti meri shadi kara di". Even before 2-3 months of my marrige i have caught him with a girl in a car when he was roaming around with her in the road but all my family members doesn't support me at that time also and forced me for marrige. Now its been 4 months i am at his home, he never gave me a single rs. For my expenses, also he is not allowing me to join any job, he keep me bound in this 4 walls of the house. Also he kept the door lock from outside we he leaves from the house. He never talks to me and treats me like a servent whome he bought up only fir household works, there is nothing in this house like TV, cuboard, washing machine etc with which i can make myself comfortable for housework. I asked for a kaamwali then he denied for the same saying ghr pr ho yahi karo, Also hi keeps taking with that women, which is making me mentally disturbed. Also my family members are not ready to support me and keep saying that you have to live there anyhow. Please help me i want a divorce from him as i can not live this life. I am a well educated and was working in a very reputed company before marrige. He lied for everything thing for marriage like his study, his job n business every thing was fake. Please suggest me what and how to do.