Any recommendations for battery replacement for iphone 14

I have got an iphone 14 which is now at 72% battery health. Is there any recommended shops(navi mumbai/mumbai area) where I can get the battery replaced at a cheap rate.
Is there any downsides of having non original batteries ? I asked a iSense near me they said they will keep the phone for a week so I don't have any alternate phone till then.
A local shop quoted me 3.5k for non original battery.