Dear applicant as you know B.Tech Dairy Science and Technology is a pretty good course, but if you follow the eligibility criteria of M.Sc Biotechnology even in countries like Italy, you should possess a Bachelor's degree mostly in Biological Sciences (B.Sc ) and B.Sc Biotechnology is well accepted. But when it comes to your career path, you can do one thing, if after preparing well you can crack GATE Examination, you can do M.Tech in Biotechnological Engineering or in foreign countries also you can have M.Tech with this specialization.

Hope it helps!!