Hello,

NASA is national aeronautical and space administration. It's a part of the United States government.

If you want to get job in NASA then you have to take science stream in your 12th standard and passed 12th with minimum 60% marks. Then you can go for engineering in aeronautical engineering or any other departments. Also you can graduate in physics, astrophysics, astronomy, geology or space science etc. Then you can go for masters and PhD also. If you want to go NASA I'll suggest you that you can work first in ISRO. ISRO is our Indian space research institution. If you work great then may be you can't go for NASA you will become get higher position in ISRO. Otherwise if you determine for NASA then after some work in ISRO you can apply for NASA. If you are selected then you can go there and work with them.

Also you can apply for NASA in https://www.usajobs.gov/ . YOu can check out there any application open for NASA if it's available apply for it.

All the best.