UPSC

Go to this link and download the advertisement for system analyst. The advertisement consist of full details about eligibility, syllabus and selection process:
https://upsc.gov.in/

IAS Officers get medical facilities for free in good government hospitals as in aims. They may get free medical facilities after retirement.

First of all, it's not easy to become an IAS officer. You need to crack UPSC which is very hard. Secondly, cyber security is not so easy. So, I would advice you to choose any one as your future. Now, IAS officer can't do other jobs while working as an IAS officer. Cyber security is a big concern nowadays and country like should focus on it. You have a good future in cyberspace but better to choose one option and focus on it.

The NEET examination is a medical entrance examination and UPSC is an examination for civil services for now, you should prefer NEET after 12th Science.

Good college for B.A. Is in Delhi university. I don't know about chahal academy. Do research about the faculty and success rate and then you'll know if it's good or not.

That's a good choice. Go for it. You can chose your engineering subject as an optional in UPSC. And would be good to chose this as a safe side.

You can give exam in other languages but you have to score minimum 33 % marks in English language paper.

Your age should be minimum 21 year on the day of applying for UPSC.