What can be done if judge has taken a wrong decision - Order ?

Hello Professionals, I am really in need of your advice in loan amount recovery case, my mother aged 60+ has taken hand loan INR 55000/- from local finance lady for my MBA admission in 2006 on heavy interest of 10% and in return, she has signed on 20 rupees blank bond paper and hand over our residence documents as guarantee. We paid her loan amount but request to skip the interest amount which was INR30000.00, she didn't listen and filed a civil case on my mother keeping that bond paper, in that paper she has written we took 5lakhs hand loan and in guarantee, she submitted residence paper. The case was filed in District Court and my mother keeps attending the hearing, she is a cancer patient too and skips some hearing and granted this judge has ordered today to pay 4 lakhs within a month. My mom, dad, brothers we all are requesting the District judge to give us some time but he is not at all listening to us and started threatening, abusing because we cannot speak local Kannada language. I was shocked to see such behavior from Judge on this case. We are telling we don't have that much money to pay but Judge itself threatened us if don't pay then will arrest your mother and finally made a settlement letter and enforce my mother to sign. Now the problem is we cannot arrange such a big amount, infect we haven't seen ever such a big amount. A judge has taken the wrong decision and forced us to accept, now I need a solution to skip or how to fight the case else I am afraid we cannot pay and it will be issue to my family. Please help me. My mail id [deleted] Regards, Mohammed Siraj, Gulbarga, Karanataka.