B.Tech Scope

DTU has one of the best placement record after legacy IITs. If you study well, you will definitely get placed in a good company.

Yes sure, no problem in that. But, there are more options, like you can be at the different food directories and food manager in hotels and restaurants.

Hello Sarthak,
The links I am providing below are the official pages of various research institutes in India-
1)http://www.barc.gov.in/careers/tso_eligibility.html
2)http://www.winentrance.com/career_courses/eligibility-biotechnology.html
3)http://career.webindia123.com/career/options/basic_environmental_science/biotechnology/eligibility.htm
4)http://entrance-exam.net/educational-qualification-for-scientistengineer-jobs-in-isro/
I hope this helps you out.

You should opt for B.Tech in IT which will provide a handful experience in that field.