You can definitely pursue B.E in Biotechnology. To get an admission into biotechnology in  BITS Dubai Campus the eligibility criteria are:

• You should have passed the 12th Exam of 10+2 system from Central or State board or its equivalent with Physics, Chemistry, and Mathematics and adequate proficiency in English. 
• You should have obtained a minimum of aggregate 75% marks in Physics, Chemistry, and Mathematics.
• Admissions are made on merit. The merit position of the student for admission will be based on the score obtained by the student in the BITSAT.
• You are eligible to appear in the BITSAT test if and only if you are appearing for 12th Exam in the present year or have passed 12th Exam in the past year.

All the best for BITSAT.