Hello,

NASA is National Aeronautics and Space Administration. So it's government job, another country members are go and get job in NASA can't possible. Many ISRO employees are wants to go NASA that's why, and they have experience and project also. But if you really want to go NASA then you can pursue your masters degree from USA. It will helpful for you.

Or, After completing your graduation or masters degree you can apply for NASA job. Also you can go 1st for ISRO then gather some knowledge and apply for NASA.

You have to create first USA job account then apply for NASA civil service job. Then complete your profile in this account. And create a very good resume. Completing all of staffs may be they inform you.

All the best.