Centres/Units/Constituents of ISRO/Department of Space are spread across the nation. Several of them units have established dedicated exhibition spaces for the students. Some of them are open for the public, on specific days. Visitors are requested to contact the officials prior to the visit.

Here are the relevant links for the visit-related information:

ISRO Propulsion Complex, Mahendragiri https://www.iprc.gov.in/outreach/museum_visit_request.html

Liquid Propulsion Systems Centre, Valiamala, Thiruvananthapuram https://www.lpsc.gov.in/CampusVisits.html

Master Control Facility, Hasan. https://www.mcf.gov.in/website/outreach

National Atmospheric Research Laboratory, Gadanki https://www.narl.gov.in/ >Public Outreach > Students Visit

Satish Dhawan Space Centre, Sriharikota https://lvg.shar.gov.in/VSCREGISTRATION/index.jsp   (Open for the public on the day of launch)

Space Applications Centre, Ahmedabad https://www.sac.gov.in/Vyom/VSSE    (Open for the public)

U R Rao Satellite Centre, Bengaluru https://www.ursc.gov.in/space-exhibition.jsp    (E-mail: studentvisit[at]ursc[dot]gov[dot]in )

Vikram Sarabhai Space Centre, Thiruvananthapuram https://spacemuseum.vssc.gov.in/index.html    (Open for the public)
https://spacemuseum.vssc.gov.in/planVisit.html    (Open for the public)