Greetings, Aspirant...

The following are the educational qualifications for becoming an astronaut:

After 10th grade, you must enrol in a science path with Physics, Chemistry, and Mathematics as core subjects.

After that, obtain a Bachelor's degree from a reputable institution.

In your Bachelor's degree, you can study physics, chemistry, mathematics, biology, and other disciplines. However, it is recommended that you take courses in aerospace or aeronautical engineering and avionics as part of your Bachelor's degree, and then continue with your Master's and Ph.D. in the same field.

Attempt to achieve the greatest possible score in all competitions or academic assessments that you participate in. Because there are a lot of individuals applying for this position and it's in such bad shape,

You can join the ISRO after graduation by taking the Joint Entrance Examination (JEE). To join NASA, you must take the NASA Space Physical Exam.

Try to get an internship in these disciplines so that you can learn the fundamentals of the field work. This will provide you with the necessary experience to meet the job's requirements and will increase your employability.

It is recommended that you first join the Air Force or the Indian Space Research Organisation (ISRO), and then enrol in an astronaut training programme. This will provide you with the necessary field training.

I hope this information helps.

Regards.