Loan Against property Matter how to get

Hi, Please help me out of this situation. For the sake of marriage of my sister, me, my elder brother and My Dad took a loan against Dad's house in the month of Jan-2018. As their papers were not so strong I became the first applicant and Mom-Dad became the co-applicant in the Loan. They assured me that they will immediately sell the house and foreclose the Loan till then they both said that they will pay the Loan emi amount. But now they have removed me and my 6 months pregnant wife from their house and are also denying to pay the Loan too saying they are not having money to pay. Being first applicant I m getting calls from bank and bearing the cheque bounce charges n all... Moreover it is also affecting my credit score. Please suggest me what to do now coz I am really in immense stress due to these issues and they are really not bothering about anything. When I call them for loan emi amount they abuse me I don't know what to do now.