Hello paruthi raj  ,

Lets first get into the detail of the above courses.

B.Tech in Biotechnology

An Engineering program which seamlessly articulates the concepts from basic science to technology with relevant practice through lab and projects pertaining to biotechnology for building the problem solving skills, keeping industry requirements in place.

B.Pharm

B.Pharm. is an undergraduate four years course (approved by PCI) which is a pre-requisite for registration to practice as a pharmacist. It imparts skills to work in industry, clinical set ups, drug control organizations, education and research sectors in pharmaceuticals

It will be advisable if you do your degree from a well known university and that provides prime placement opportunity, outstanding exposure and professional enhancement training. 

So analysing the above two: BioTech is better than B.Pharma anyday!

Now,

In my opinion: (ABOUT THE COMPARISION OF REST TWO)

If Biotech and Biomedical is considered then:

Biotechnology is an immensely diverse field and is quiet vast… biomedical is the study of medical Equipments mostly and is inclined towards more of technology whereas biotechnology includes both theoretical part and the technical aspect. So biotechnology provides more of opportunities and widespread exposure.

Again I'd say, its my opinion and thinking that Biotech is better than the other two as far as employment and future studies is concerned.

But overall it depends on you and your interest. If you have interest in something then you can excel irrespective of employments factors or other factors.

Hope that answers the question!

All the very best!