Dear Rupa,

     To become a scientist,

1. Find the field or subject of your interest.

2. Get a bachelor degree in your chosen field.

3. Go for Master's Degree.

4. Apply for Ph.D. or Post Doctoral degree in a well-reputed university.

5. Take exams like IIST, ARS/NET, Scientist Entrance test by DRDO.

Go with your research.

Hope all your wishes come true..

All the best..!!