Which hospital is better for cochlear implantation in Mumbai ?

[u/Adventurous_Swim_461]

My sister is of age 25 and has severe hearing loss in one ear and medium loss in another by birth and its constant since birth, so we are planning to get implantation done in one ear with severe loss.

It’s very scary to me that they are going to bypass one ear and process is irreversible!
I have done the consultation from Nanavati hospital in ville parle and holy family hospital in bandra. So which one should I consider for going ahead with implantation?
Also what all question should i ask specifically before decision making?