Indian Institute of Technology, IIT Bombay

Hello Apurva,
Of all the IIT's, Mumbai is colloquially considered at pole position. Hence you need to be with almost 95 percentile or more to get a seat in IIT-M in your desired stream.
Regular study of all subjects' every day and mock tests every week with analysis of result enabling less and less errors should be followed. Try to take crash course of coaching institutes. They normally teach you shortcuts cuts in answering questions.

You can go in ISRO after completing your B.Tech in Aerospace engineering.
For NASA, it is too hard to go.
But if you want to work with NASA, you will have to clear master degree and then PhD in your field. After that you have to qualify for NASA written exam and then for interview.

Hi Jonathan,
Yes, you can get decent rank by dropping one year. You need to work hard and make a strategy. It depend on your creativity.

Hello Jonathan,
To get into IIT B, you have to clear two exams. Firstly JEE Mains and then JEE Advanced. Of course, you have to score above 75% in your 12th also. Then, for specific course in a specific IIT, you need to be in a relatively higher percentile bracket.
Best wishes.

Please confirm for which field are you seeking information & advice?

IIT Powai is the best Institutes for B.Tech Aeronautical Engineering in India with international renowned faculty.

JEE advanced is mainly for IIT.

Hello Radhe, there is still enough time. You have to first fill up form, appear and score more than cutoff in JEE Mains. Then you have to apply, appear and clear in JEE Advanced. Then the admission process begins. Normally ads are placed in all major newspapers about this and you simply can not miss. Best wishes.