To reach NASA as a Calcutta University student pursuing a B.Sc., consider earning a PhD in an astronomy-related field and focusing on research and publications to enhance your profile. Applying for a NASA Postdoctoral Program (NPP) is competitive, but having connections with a specific NASA center can significantly improve your chances. Attend specialized conferences to network with NASA professionals and showcase your work, as familiarity can lead to better opportunities. Alternatively, enrolling in a graduate program with established ties to NASA can facilitate valuable connections and insights into their processes. Building a strong academic and professional network is crucial for success in this competitive field.