Hi guys, so a little update for anyone coming in with the same issue:
I went to the local excise office today, they asked me to get a Rs.50/- stamp paper and write the detail on it (the story that I sold my car and it is still on my name, Kindly block/suspend the registration). I did that, came back and got it attested and then signed by the ETO. the application was then submitted and the vehicle was suspended within minutes! taa-dah!