As you want to get the details that which course has a better scope between M.Sc microbiology/M.Sc Biochemistry/M.Sc Biotechnology so here is the information of the same for you:

All the three courses really have great and good career opportunities

It really depends upon you what you want.

If you are going for M.Sc Biotechnology you will have a great career in foreign.

But if want to have a career in India , I suggest you to have Biochemistry as your main stream.

Yet Microbiology is very fascinating and has a delightful career here.

It also has many nice colleges in India