Husband threatening to withdraw loan papers from bank

According to what you have posted, the loan seems to be in a Joint name, the liability will exist till the time even a penny of loan exists. Your husband can't just take the documents out and shift the loan burden on you. Both the parties are responsible for repayment and it is not open for one party to walk out on the debt.

Generally in case of joint loans, the property is registered jointly in the name of both the parties. So this flat of yours also must be a joint property. In that case also your husband can't ask you to leave the House. Moreover, even if the flat is in the name of your husband, then also as per the laws of India you have a right to stay in the house.