Vehicle Sold, Paper not transfer, New owner met with an accident

Hi, I have sold my vehicle (Honda Scooty) to a person in December 2015. I had given him my RC and form 29 signed for paper transfer. After that i forgot about it, One day he messaged me that he had lost form 29 so wanted me to send another signed form. I delayed it and again forgot about it, now again after 7-8 months , Police called me saying that my vehicle is met with an accident and i am the owner. I am not in Bangalore currently and i am travelling. The police guys want me in the station and says i am responsible. Please help me out ! I am ready to pay for consultation if any one can represent me in the station and help me out to resolve this. I can again courier form 29 signed. I dont even have my RC, the new guy has. Help me out to get out of this situation. Thanks