Uttar Pradesh

B.Sc from Amity University, Noida is good. As they have a decent syllabus, good labs, the faculty is supporting, they offer summer internships, excellent infrastructure, no ragging, the online portal (Amizone), and foreign language. Amity is strict in terms of attendance and has very good for securi

You can get through management quota.

Yes sure, you need to fill online form, and you also sit for a Entrance Exam & P.I.

It depends on your percentage and how you cracked your entrance exam.

Based on the details provided by you, we can see that you are having a good chances of getting some colleges of India. Meanwhile you can check following links to get more details
JEE Main 2018 College predictor :
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor
JEE Main Rank Predic

There is no such process. If you want to make a career in CSE only then you must opt for B.Tech in CSE. But in post-graduation, if you want to pursue M.Tech in CSE then you have to appear for GATE so that you can get a seat in IIT, IIIT, etc.
Best of luck.

I think there is no "best" thing in studies. Only we are the one who makes everything better through our hard work and dedication. But as to answer your question, in my opinion, FIITJEE has the best faculty members all over India. here are the reasons:
1. The test series of FIITJEE is up to the level