Important ISRO Facilities and Centres in India

The Indian Space Research Organisation has built a wide network of centres that support launch vehicle development, satellite fabrication, mission operations, tracking, and space science. For Prelims, these facilities are important because each one has a clear function and location, making them easy to identify in exam questions.

Major Operational Centres and Facilities

Auxiliary Engineering, Training, and Support Units

• Laboratory for Electro-Optics Systems (LEOS), Bengaluru: Designs and fabricates attitude sensors, optical payloads, and thermal control materials for spacecraft.
• ISRO Inertial Systems Unit (IISU), Thiruvananthapuram: Develops inertial sensors, gyroscopes, and navigation packages for launch vehicles.
• Indian Institute of Remote Sensing (IIRS), Dehradun: Functions as a training and education centre for remote sensing, GIS applications, and natural resource management.
• North Eastern Space Applications Centre (NE-SAC), Umiam: A joint venture of DoS and the North Eastern Council that provides satellite-based inputs for development planning in the Northeast.
• Semi-Conductor Laboratory (SCL), Mohali, Punjab: Designs and fabricates application-specific integrated circuits and micro-electromechanical systems for space systems.
• Indian Institute of Space Science and Technology (IIST), Thiruvananthapuram: A government-aided institute offering undergraduate, postgraduate, and doctoral programmes in space sciences.
• Ammonium Perchlorate Experimental Plant (APEP), Aluva, Kerala: Produces high-purity ammonium perchlorate, used as the primary oxidizer in solid fuel boosters such as S200.

Space Science and Research Institutions

• Physical Research Laboratory (PRL), Ahmedabad: An autonomous DoS-funded institution engaged in experimental and theoretical studies in astrophysics, solar physics, and planetary sciences.
• National Atmospheric Research Laboratory (NARL), Tirupati: Studies atmospheric dynamics using MST radars, lidar equipment, and related observational systems.
• Indian Deep Space Network (IDSN), Byalalu near Bengaluru: Provides tracking support for interplanetary missions and includes a 32-metre antenna.
• Indian Space Science Data Centre (ISSDC), Byalalu: Archives and processes scientific data from missions such as Chandrayaan, Mars Orbiter Mission, and Aditya-L1.
• Indian Space Research Organisation facilities at Byalalu: The location is especially important for deep-space communication and scientific data handling, making it a recurring Prelims location-based question.

Institutional Structure and Strategic Role

• Department of Space (DoS): ISRO functions under the administrative control of DoS.
• Space Commission: Frames financial, administrative, and technological policies for national space initiatives.
• Leadership linkage: The Chairman of ISRO also serves as Secretary of DoS.
• Direct charge: The DoS is under the direct charge of the Prime Minister of India.
• IN-SPACe: An autonomous, single-window nodal agency under DoS that authorizes and regulates private space entities.
• Antrix Corporation Limited and NewSpace India Limited (NSIL): Public sector enterprises involved in marketing launch services and commercialising indigenous technologies.
• Strategic importance: These institutions strengthen institutional capacity, expand commercial participation, and support strategic infrastructure for space-based services.

Important Milestones and Firsts

• INCOSPAR: The Indian National Committee for Space Research was set up in 1962 and marked the beginning of the organised space programme.
• ISRO: Established on August 15, 1969.
• DoS: ISRO was placed under the newly formed Department of Space in September 1972.
• Space Commission: Established in June 1972.
• Aryabhata: India’s first satellite, launched in 1975 using a Soviet launcher.
• Rohini (RS-1): Launched in 1980 by SLV-3, becoming the first satellite placed into orbit by an indigenous Indian launch vehicle.

Key Prelims Takeaways

• VSSC is the main launch vehicle design centre, while URSC handles spacecraft design, integration, and testing.
• SDSC SHAR at Sriharikota is India’s principal launch station and a key strategic infrastructure site.
• LPSC designs propulsion systems, whereas IPRC carries out testing and integration of engines and cryogenic stages.
• SAC is associated with payloads, while NRSC deals with Earth observation data acquisition and processing.
• ISTRAC manages tracking and mission command; MCF focuses on post-launch operations of geostationary satellites.
• IN-SPACe regulates and authorises private space activities, reflecting the expanding institutional capacity of the sector.
• IDSN and ISSDC at Byalalu are important for deep-space tracking and scientific data archiving.

Recent Context

On September 9, 2026, ISRO conducted a flight acceptance hot test of the indigenous CE20 cryogenic engine at 220 kN thrust at the Main Engine & Stage Test facility in IPRC, Mahendragiri. The test supported the upgraded C32 upper stage for the LVM3 M7 mission and also demonstrated the Liquid Oxygen Tank Pressurisation Module for the Gaganyaan programme.