Not cancelling the ECS even after prior notice

I enrolled in Vedantu for coaching (2023-2024) and they said that If I dropout of the course I can't get back the admission fee and the tuition paid already (Rs 5334 per month). At the time of September, it was a hard time for our family, and we couldn't pay and personally I didn't like classes much since they told its in English, but the teachers are speaking Hindi and broken English. But vedantu rejected my request and claims that since I didn't attend classes properly, so I can't dropout, and at this time only I came to know that I have taken a loan from an org called GrayQuest, but my mom's income is very low (Rs.15k) and she already has an housing loan (EMI Rs8334) and an personal loan (Emi ≈ Rs5k), my mom is the only working mother and my aunt supports my mother sometimes, So we were in no place to take up a loan and after going through my Gray quest id, I came to realise that Vedantu have taken an loan on my behalf without my consent, I've never told its an educational loan that is taken from an third party org(Gray quest), for the confirmation of Emi they scheduled an Zoom meet and they told us to enter otp and asked my mother to take a picture of her, and they filled false information stating that my mother income is Rs 40k and has an experience over 10yrs which are completely false I stated this to grayquest and they wasn't really worried about it they just asked me when will I pay my EMI, I asked them to cancel but they told that they will only cancel only if vedantu returns the amount and its my responsibility to make vedantu to return, and also my mom went to bank to cancel the ecs but they told only they provider can cancel the ecs and I register greivence at consumer forum but but vedantu said the same thing and closed the grievance and now I have received an demand notice to pay the emi what should i do