| A Rajarajan is the director of the Satish Dhawan Space Centre SHAR (SDSC SHAR) and chief of the Launch Authorisation Board (LAB) based in Sriharikota. He is among the top 5 key ISRO scientists pivotal to the success of India's Chandrayaan-3 mission in 2023. |
| Rajarajan is a renowned expert in composites and has published several papers on composite materials. |
| He began his career at Satish Dhawan Space Centre (SDSC) in the Fiber Reinforced Plastic division and has contributed significantly to the development of composite products. |
| In 2017, Rajarajan was appointed deputy director of the Propulsion and Space Ordinance Entity (PRSO) following a mission setback. His leadership optimized production procedures and validated a more reliable pyro separation system for subsequent launches. |
| During his role as deputy director, Rajarajan was instrumental in developing various composite products, such as solar panel substrates, antennas, and a large payload fairing. |
| Rajarajan has led multiple VSSC entities throughout his career and was promoted to the director of the Satish Dhawan Space Centre (SDSC) in July 2019. |
| As the director of SDSC, Rajarajan oversees solid motor production and infrastructure development to support ISRO's growing launch requirements. |
| Under his leadership, significant progress has been made in enhancing solid motor production and launch vehicle integration facilities, improving launch efficiency. |
| Rajarajan collaborates with industries to develop essential technologies, contributing to various Indian planetary missions like Chandrayaan-1 and Chandrayaan-2. |
| He is recognized for his captivating speeches on cutting-edge technological applications of composites at various conferences. |
