Co applicant in home loan

My nephew is going for divorce on mutual consent. My nephew is co -applicant for her husband for the purchase of flat on loan from HDFC bank. Till date he has not paid the whole loan amount. The HDFC bank says that even after getting divorce , my nephew continous to be the coapplicant for the loan till he (the husband)changes the coapplicant. They have nothing to do with the divorce. The divorce is expected in 30 days. How can we get protection under law for the loan taken by the husband after divorce. Is it possible to mention about this this loan details in the divorce order