What should a wife do if the husband has given more then 3 talaq's and denying it according shari'a?

My husband gaved me talaq at 4 different times without any witness. He is now denying that he gave only twice and takes oath of Quran. Here muftis in India say that witnesses of men would be considered only and my saying will not be considered, some Qazi also says that there is no sin on me as he has to bear for every sin, Every scholars talk different, I just want to obey Allah Swt . What should I do?
What is the right sharai rulings for me?