B.Tech Scope

You need to donate money to get the management seat.

Your BE/B Tech Certificate should be awarded by a recognized University as per DGS Circular 07 of 2005 This Page will guide, how to join Merchant Navy after BE/B Tech and which Marine course in India you need to attend. You should be within the prescribed age as on the date of the commencement of the Pre Sea training Course.

Dear thasneem . since you have engineering background better prefer, Marketing, Material management, Productions and operations that are suitable and provides great placement. apart from that you can go any other specialisations based on your interest.

Percentage and selection is purely based on your number obtained in entrance test either by NEET or other exams.
After b tech you can go for m tech. Nowa days MBA n Civil services are greatly opted by engineering graduates. So think of your area of interest and go ahead.

you can not compare job opportunities like this. in which one you will be able to excel will fetch you a job.
In case if you take CSE and if you are not having aptitude to do programming how can you get jobs.

Yes biotechnology has very good scope. Biotechnology engineers are very high in demand for research in medicine in industry. If you're interested in this field, then definitely opt for it.
All the best.

in india there is very less scope for biotechnology.bt very opposite there is a lot of scope abroad.in india due to less contribution from india govt scope is less.u would get much better results in US and UK

Follow the article for details :
https://www.shiksha.com/career-as-computer-engineer-cc-31