Yes. ISRO does recruit Civil Engineers, but in relatively smaller numbers. Say like five to ten an year. I think this year they have not called for Civil Engineers so far, so keep your eyes open. Notifications will be available in ISRO website. Once you get through mostly you will join the Construction and Maintenance divisions. There are openings in almost every center. FYI reservations under government norms are applicable in case of Civil engineers.

I was talking about BE/BTech graduates. Now there is another option after BE in Civil. Do your ME/MTech in Structural Engineering. I think work wise, it would be more challenging as well.