Hey Thanmai,
B.tech Biotechnology is a 4-year undergraduate degree course. The course includes study of living organisms and microorganisms for research and technology.
It includes combination of engineering, chemistry, genetics, bio-chemistry and Microbiology studies.
You can further pursue specialization in the course in the following fields:

• Genetics
• Virology
• Immunology
• Biophysics
• Biochemistry
• Pharmacology
• Microbiology
• Molecular Biology

For admission in this course you should have minimum eligibility of: You must have passed 10+2 examinations with Physics, Chemistry, Biology and Mathematics as compulsory subjects with atleast 55% aggregate marks.
So my friend, you are not eligible for this course (B.Tech Biotechnology).