Science

Dear,
It is not wise to pursue CEH course prior to Graduation I.e. B.Tech in CSE/IT or BCA. Actually, CEH course as available is not of so useful as projected. You may go with networking course followed by security course like CCNA security, Knowledge of programming is very much needed. Knowledge of IP address, MAC address, routing protocols, how LAN, WAN work. There are so many things in the domain. Security professionals with strong knowledge base are of high demands in IT Domain. Go with deserving foundation. Best wishes.

Hi,
IISc - Bangalore is the place in India to join as researcher at ISRO. IISER and NISER also offer BS + MS in various subjects like astrophysics to become a space researcher. You also have option of pursuing cosmology course abroad.

B.Sc in aeronautical has less scope. Instead of B.Sc, you can go for B.Tech in aeronautical engineering, which has better scope than B.Sc. You will get better opportunities with B.Tech in this field. Most of the airlines prefer B.Tech students as compared to B.Sc students.