Hong Kong is not a popular destination for MBBS with Indian students. We have been in this industry since 2006 and have never come across anyone query for MBBS in Hong Kong.Anyways, since you interest is to purse from Hong Kong I did a search and below is the link to a University providing MBBS course there.
Indian students generally go to countries like Ukraine, Russia, China, Philippines etc. For MBBS information on these countries you can visit the following website:
Vijay Alreja, Director of SEED MBBS ADMISSION Abroad Cell: 956 020 1110