Hey Arunesh,

B.Tech degree in Biotechnology (http://bit.ly/1iUgl6I) encompasses both the biological sciences as well as engineering aspects of Biotechnology (http://bit.ly/1iUgl6I) . The B.Tech curriculum covers life sciences subjects such as Microbiology, Molecular Biology, Genetics, Cell Biology etc and engineering subjects like Bioprocess Engineering, Biochemical Engineering, Thermodynamics, MassTransfer etc.

A B.Sc degree on the other hand focuses more on the biological sciences aspect. There will be a few subjects (1 or 2) related to industrial processes but the main emphasis will be on R&D in biological sciences fields such as Biochemistry, Plant and Animal Biotechnology (http://bit.ly/1iUgl6I) , Microbiology, Molecular Biology and Microbial Genetics, to name a few.

Hope this helps,

All the best and thank you!