Dear

Biotechnology engineering is a research field at least you have to invest approx 9 years upto  PHD level than you can get good project and salary wise.

Otherwise after B.tech you have to compromise with the salary and job profile like quality control, Business development and marketing .

Choose the field According to all factors your years of investment, job factor , opportunities and demand.

All the best

Dear Yashwanth
If you're really interested in biotechnology, then it's fine go and opt that. If and only if, it's your passion. Think about it and otherwise, you can get CSE, ECE etc..

It has no much future
Either u go like CSE , civil, software, mechanical,ece