For MBA the best university is Auckland University which is ranked in top 100 Universities word-wide also one my my fav is Otago University. You can find quite a few of them on https://studycrown.com/institute/institutes/institute_listing/stream:mba or maybe try studyinnewzealand.govt.nz
I completed my graduation from Delhi University this year and now I am looking for MBA in New Zealand. Please suggest me some good universities in New Zealand. I also consult with some education consultant like IDP,Chopra's etc.