ISRO’s Liquid Propulsion Systems Centre (LPSC) Valiamala is the centre headquarters for research, system design and engineering, and project management for liquid, cryogenic, semi-cryogenic and electric propulsion systems for launch vehicles. The campus also hosts fluid-control components, advanced manufacturing and proto-fabrication, and propulsion and structures R&D. ISRO’s current visitor guidance describes this as a strategic high-security campus: registered school and college groups of 25–100 students can visit on alternate Fridays with original photo ID and institutional authorization; school participants must be Class 8 or above, children are not permitted, and electronic devices must be left in buses. This is a formal educational visit, not casual public access. Visitor location: LPSC, ISRO, Valiamala PO, Thiruvananthapuram, Kerala 695547, India.