Engineering

For B.Tech course, you can take branch only chemical. Don't go for other groups, better you take M.Sc seat. Go for chemistry course only. Both courses are better, but our choice take course admission only chemical or chemistry.

The major branches and specialization areas of B.Tech CSE are followings:
1. Android application and development
2. Machine learning
3. Big data
4. Data Science
5. Cloud computing
6. Full stack web development
7. Cyber security
8. Internet of things
9. Mobile computing
10. Open source and open standard.

You can check some options through the link provided below:
https://www.google.com/url?sa=t&source=web&rct=j&url=https://ask.shiksha.com/getTopicDetail/1391480/which-is-the-best-course-to-pursue-after-bsc-in-horticulture&ved=2ahUKEwiezauKtKjjAhVZT30KHV8sCXYQjjgwEnoECAcQAQ&usg=AOvVaw26HROIqIMhcdm3BJyziWFy&cshid=1562695112481

According to me, the best universities that you have mentioned is the computer Science engineering from Guru Jambheshwar, because one of my friend is studying there, and I know that he is enjoying, because he tells me about it and about the quality of education and the quality of exposure that he receives it not only helps him in getting a good job but also a good placement.

No, it will be quite hard for you to get admission for MCA, because it is a very less marks and you have to change your preferences.

Yes, you can do the PG Diploma course after Bachelor of Engineering Electronics and Telecommunication Engineering.

Yes, you can get admission in M.tech food technology but you have to score well in your academic.

As far as I have the general facts of the Jaypee institute of IIT in Delhi for CSE B.Tech I would suggest you to take admission here only because this college has a very good faculty and a very good syllabus for the students because that do not what give burden on the students and provide a very good exposure of studies.