hello aspirant,

I hope that you are doing absolutely great,

With reference to your above mentioned query, i would like to tell you that theer are various roles of a Civil engineering student in ISRO. The Civil Engineering Programme Office (CEPO) at ISRO Headquarters, Bengaluru and Construction and Maintenance Division (CMDs) located at various ISRO Centres/Units are responsible for planning, design, construction and maintenance of all ground based structures, buildings and associated utilities to cater to the Space.

You should have a B. Tech or equivalent in Civil Engineering in First Class with an aggregate minimum of 65% marks or CGPA of 6.84/10 to apply for ISRO CE 2021 Exam.

No, you don't need to study Aerospace engineering as the role of Civil engineers in ISRO would be different as aerospace engineers. Yes . Civil engineer can apply for scientist post in ISRO in the field of remote sensing applications.

Further, to know more about ISRO recruitments , you can prefer following the below mentioned link : https://engineering.careers360.com/articles/isro-recruitment

I hope that this will help.