Is it possible for me to return my new bike to the showroom and get refund because it had defective parts?

This is my first time using this site so I will keep things short and use key points -bought TVS Raider from the showroom two months ago -had to visit the showroom multiple times due to issues -received with a cracked screen after service Week-8 -> bike failed. (battery died. only electric start available), -> the bike was delivered 6 hours after" ready for delivery" -had a suspicion that the battery was swapped in service since the new bike failed so quickly, asked to show my original battery but they couldn't since they had replaced the battery in a different branch. thus no trust in TVS and hence wanted to return and refund the bike they claim the refund is not within their policy. yet I can't find it on their website that 2-wheelers are non-refundable, after 10 days of bike failure, pics of the battery were sent, however, pics were taken on a different bike. I feel that it isn't my battery. I clearly don't want to deal with TVS after this.