How is medanta hospital for brain surgey ?

I'm from Nepal. I have a relative with some kind of cyst (epidermoid cyst they say) in brain stem and needed surgery. We were seeking advice from different doctors ( i myself is a medical student in Nepal ) and one of them advised to go to Medanta ( after i have mentioned that i have relatives in Delhi too where accommodaiton won't be a problem). I dont have any idea if it will be a good idea to come Medanta for brain surgery or not. I need your suggestions if you have any past experience with that hospital. Thank You.