Hey Aishwarya

To become an Aerospace Scientist it will take a lot of dedication and efforts, for that you may see the following tips:

1. Complete you Graduation (B.S./B.E./B.Tech) from a recognised university/college majoring in Aerospace Engineering
2. Complete trainings/internships in the same field and build a good profile
3. After Graduation, candidate should apply for Masters/PhD as Scientists need to have a deep knowledge of their domain
4. One should practise or keep researching on various concepts in Aerospace while pursuing their degree and so the candidate can be placed to R & D departments, labs or organisations dealing with Aerospace and Aeronautical works depending upon their experience and records
5. Note: The higher you go for studies more vast opportunities would be open for you as a Scientist/Researcher  (Doctorate/PhD)

For further doubts, ask us.