B.Sc Scope

B.Sc in agriculture is the first degree in agriculture. It is a broad-based course that deals with production of food and horticultural crops, rearing of farm animals, agricultural extension, rural economy and rural development, working with farmers, environmental health, etc. As such the B.Sc agriculture degree holders are exposed to and knowledgeable in many fields that are related rural development and find jobs in public and private sector agricultural and related companies, banks, and self-employment as entrepreneurs. In addition, you can prepare for IAS, IPS, and other competitive exams and enter into civil service. Many truly successful IAS and IPS officers are agricultural graduates.

B.Sc. is one of the most chosen courses by Indian students who clear 12th from science field.
If you want to precede your career in biotechnology them I will recommend you to go for B.Tech biotech instead of B.Sc.
As in India just after B.Sc. in a particular subject you won't have any opportunity in the particular field until you do Masters or PhD in the following subject.
Therefore I will recommend you to go for B.Sc. general so that you may go for any field after completion of your graduate degree.
Yeah you may apply for some government job like Civil Services, SSC CGL, a lot more but none of these jobs will be related to science.
Just choose your field wisely and go for it.