Career

Hello,
Computer science engineering, equally covers both hardware and software aspects. Information technology engineering and software engineering has a lesser focus on the hardware aspect. However, this difference hardly matters as universities frequently keep updating the syllabus for each branch.
Unless and until, you get a job in a hardware manufacturing company like Intel, Logitech, etc. this little difference in the syllabus hardly matters. Most of the jobs offered is in the software domain. If you opt for information technology engineering, you can become a software engineer. If you opt for computer science engineering, you can become a computer engineer, which covers both hardware and software.
So, there is no need to compare the little differences between the branches. You can get admission in a good college in any of these branches. You should keep a percentage of over 70% without any backlogs.
All the best.

Hello Amit,
To become an electronics engineer, your brother needs to have Physics, Chemistry and Mathematics in 12th standard. During this time, he can also join a good engineering coaching institute for better preparation. After completing class 12th, your brother needs to appear for various entrance examinations. I would suggest him to appear for IIT JEE and AIEEE. These two entrance examinations provide admissions to IITs/ NITs and other government colleges, which are cost-effective.
I would also suggest him to appear for individual state examinations (OJEE in Odisha, EAMCET in Andhra Pradesh/ Telangana, COMEDK in Karnataka, etc.). These exams also guarantee good colleges and serve as a backup in case things don't end up the way he has planned for IIT/ AIEEE.
Every state has its own share of good engineering colleges. So, don't underestimate or overlook them. They can prove to be vital. The more the entrance examinations you appear for, the more the options he will have for choosing colleges.
Certain private colleges like SRM, KIIT - Odisha, GITAM - Vishakhapatnam and ITER - Odisha conduct their own entrance examinations. Your brother can opt for these as well.
After the results of those entrance examinations are announced, if your brother has a valid score and rank, he can attend the counselling procedure for the respective entrance examination. During the counselling procedure, he can select a college of his choice and the branch of engineering.
I hope it helps. If so, kindly, upvote this answer.
If you've any further questions, kindly revert.