education load

I have taken an education loan from SBI amounting rupee 380000 in 2008 and my father was a guarnter who is a goverment teacher after completing my graduation my father is paying installment of emi sicne 2013 since few day ago he is missing because of some mental problem and after that all family resopnsiblty is on me like my younger sister education and my mother i m not capable to pay remaining loan amount what is the proceesor for waiver the remaining amount or any type of waiver plz help me