Computer Science and Engineering

There is no huge difference, but yes it is different from your 3rd year of B.Tech.
In IT, it is all about Software, in CS it all about Sofwtare + Hardware + OS core. So, choose the same as per your interest like in software/programing language or in IT infra like network/server/Operating System etc.

It does not depend on the score. It depends on the rank you have got.

https://www.shiksha.com/careers/big-data-analyst-215
Data analytics is one of the most trending topics currently, and has a good starting package also. So, go for it. All the best for your bright future.

BCA is the graduation degree of Bachelor's computer applications, and for that you need to pursue 10+ 2 with minimum of 50% in your PUC. So, I think you are not eligible.

With MCA, you should pursue B.Tech in computer Science because B.Tech computer Science is a practical oriented study it yields good results if done MCA after that.

Nowadays, computer Science is better than information technology in terms of demand in the market and placement opportunities, so B.Sc in computer Science is no doubt a better option.

The basic difference is that, B.Tech is more practical oriented with the technical knowledge needed nowadays, but both course have somehow equivalent scope now.

Hi,It is advisable to get in touch with the college officials, as the admission process varies from college to college. Thanks.

Hello,Your score is really low. I don't think you are eligible in most colleges. All the best.