Degree

Yes, you can prepare from home and can appear for CAT. However, it would be quite difficult for you to get admission in IIMs until you are born genius.

Hello Rani,
The admission process in OU has already begun. Go to the admission office of the university. Kindly refer the following link:
https://dost.cgg.gov.in/

HAE Pune gives only Aircraft Maintenance Engineer (AME) license approved by DGCA, Govt. of India to Carryout and certifies the maintenance of Aircraft, Aircraft Engine, and Its Component. The license is issued in accordance with the Rule 61 of Aircraft Rule 1937 under Aircraft Act, 1934 (XXII of 1934) passed by Indian Parliament to ensure the airworthiness of the aircraft before its flying in accordance with the national & international aviation standards.

Yes, you can take UPSC exam. You are eligible for the same. Good luck.

Yes, you can easily get B.Sc seat any Degree College or University in Telangana and Andhra Pradesh, Your +2 Score is too good. You may fees concession also in some colleges, one thing you need to do is approach any college for admission as early as possible because it is already June. All the Best.

Yes, after you complete, you can directly pursue your masters without work experience, and you will get admission easily if you have good academic score.

For this course the best college is SPA rather than the NIT.