I have not been going for my off day and I don't...

According to your question, we would like to inform you that the employee rights that to work for specific time not more than 8 hours, and get good salary, the right to get vacations and leaves and so on.

If you are facing a problem with the employer, then you can file a complaint in the labor office and explain to them what happened with you. or you can wait till the work contract end and find another work.