Your OP stated that you don't want this done.
Now you're asking for recommendations.
So you're talking bollocks and you just want recommendations on where to take your (presumably) small baby to have blunt metal shoved through her ears, without anaesthesia or paint relief.
My ILs are also Indian, and this subject has been raised a number of times with me. My reply? "I don't want her ears pierced. If SHE decides she wants them pierced, and she's old enough to take responsibility for them, then I'll consider it. I don't want to shove metal through my child's ears for absolutely no reason". End of. And repeat.
Piercing guns cannot be sterilised and the shitty cartridge things you can buy are barbaric.
Don't dress up your post as being resistant to a 'tradition', when you're actually just looking for someone to mutilate your baby in exchange for money.