My wife cheated me

I got married to my girlfriend without her parents permission as per the Hindu culture and ceremonies on the date of 30 June 2020. We were staying together from that time in a husband and wife relationship. She is from Surat and was staying and studying with me in nasik.i suggested her to do international hotel management course USA and was also taking care of her fees every month as she said she want to do something good in life. I'm in merchant navy and I went onboard sailing in December 2020 after that time she was staying with my parent.. in the month of march she went to her home and informed her mother about her marriage. Her mother shouted on her and told her many things to endup the relationship and be focus on her carrier and from that time she was not giving me the time I was expecting from her. Her mother was talking to me very politely but playing some game on my back and my wife was also included. As days goes our relationship was not compatible and we use to fight alot as everytime she use to say in busy,I'm feeling sleepy when ever I call and saying that she need some space and time in our relationship... Now she and her mother block me and my family everywhere on what'sapp and some other app.. now her mom is not accepting our marriage and saying that she don't believe in our marriage as there are no paperworks and registration of marriage and my wife says that I don't want to live with you and in this relationship as my parents are not accepting it so I won't be happy without there permission..I want to live with them only and she is also not interested in our marriage life, blaiming that she can't be happy with me as we fight alot and no understanding is there between us..... I asked them for divorce but getting no response ...there plan is to send her daughter USA before I come back India from sailing and in my absence they want to send her daughter abroad ...they say if they don't believe in marriage so, y they will give divorce with what law and permission you got married to her ....not getting response to divorce things and blackmail me that I forcefully married to there daughter in there absence and without knowing them...I have all the proofs of marriage like photograph's, videos, marriage invitation card and also the all the witnesses who attended the wedding...I want divorce from her before she go USA and all my money back which I paid for her fees and I also have the bank statement for all the money I invested on her....I tried to make me fool and cheated me. I belong s to SC caste and my wife is Maratha they also have caste problem before they was okay with everything my caste me with our living relationship....