Hello,

If you are interested in aerospace then you can join this research center.

You have to give an entrance exam conducted by the research centre itself.

Eligibility criteria for job in BARC is:

• General Category, the age limit is 26 years, while OBC OBC category is 29.
• For the SC/ST Category, the age limit is 31 years,
• You  must have qualified B.E/B.Tech or equivalent qualifying degree in first class with an aggregate minimum of 65% marks or CGPA of 6.84 on a scale of 10.
• If you are in your final year of qualifying degree  then also you are eligible to apply if your final graduation degree will be available before the final results and they secure an aggregate of 65% marks or CGPA 6.84 (average of all semesters for which results are available).

You can apply for the application form from the official site of barc.

• The BARC exam mode is Online with the language of the paper being completely English
• The questions are totally objective type with both multiple choice questions.
• Total questions 100
• The duration of the examination is 120 minutes.
• Correct answer gets 3 and wrong gets -1
• If selected will be called for a personal interview round.
• Selection Interviews of short-listed candidates will be conducted in Mumbai (in all disciplines except Geology and Geophysics) and Hyderabad (in Geology and Geophysics).
• Candidates who clear the interview will be selected as “Scientific Officer”.

http://www.barc.gov.in/careers/tso_eligibility.html

https://www.barconlineexam.in/science/info-eligible-criteria.html#:~:text=Eligible%20candidates%20must%20have%20two,Tech

You can refer to this links for more information

Hope this helps!!