Biotechnology

In my opinion, B.Tech is better.
B.Tech degrees are four-year degrees, the last semester comprises of a 45 month project that will definitely teach you hands-on biotech. It also enriches your practical knowledge and makes your CV look good. If your luck is good, you might even publish papers out of your project.
B.Tech includes a wide range of topics, a few of which are: engineering math, basic and advanced biology, programming, chemical engineering, industrial biotech, mechanical engineering, electrical engineering, electronics and communication, genetic engineering, immunology, biomedical engineering and instrumentation, etc.
B.Sc degree, on the other hand, are domain-specific and are extensively theoretical. They take three years for completion and do not provide enough hands-on experience. The natural career path is to do a M.Sc, Ph.D and either become a professor, or post-doc. Also, B.Sc degrees in a NAAC A credited university are the ones that are internationally recognized and may make it easier to study abroad.