| 1. Nambi Narayanan joined ISRO in 1966. |
| 2. In the early 1970s, he invented liquid fuel rocket technology for India's future civilian space programs. |
| 3. His work was supported by U.R. Rao and ISRO Chairman Satish Dhawan, leading to the development of liquid propellant motors. |
| 4. Nambi was in charge of ISRO's cryogenics division. |
| 5. He collaborated with prominent Indian scientists like Satish Dhawan, Vikram Sarabhai, and Dr APJ Abdul Kalam during his 35 years at ISRO. |
| 6. He faced false charges and threats from Intelligence Bureau Officers due to an espionage case. |
| 7. Nambi and another scientist were accused of transferring ISRO's secrets for money. |
| 8. Despite not receiving support from ISRO during the legal proceedings, CBI dismissed all charges against him in 1996. |
| 9. He was acquitted by the Supreme Court of India in 1998. |
| 10. After being cleared of all charges, Nambi sought compensation for his suffering and demanded accountability from the authorities. |
| 11. Nambi revealed instances of mental and physical abuse during his ordeal. |
| 12. In 2012, the High Court directed Kerala to pay him ₹10 lakhs, which led to another legal battle. |
| 13. His autobiography detailing the espionage case was released in 2017. |
| 14. In 2018, the Supreme Court acknowledged the harm to Nambi's reputation and ordered compensation from the officials involved. |
| 15. Nambi shared the impact of the case on his family and society's perception of him. |
| 16. He fought for justice for two decades and was eventually awarded ₹75 lakhs in compensation. |
| 17. R. Madhavan portrayed Nambi in the film "Rocketry: The Nambi Effect," released in 2022. |
| 18. In 2019, Nambi Narayanan was honored with the Padma Bhushan. |
| 19. He contributed significantly to the Indian space program by developing the Vikas rocket engine. |
| 20. He led the team that acquired technology from the French for the Vikas engine used in India's first PSLV launch. |
| 21. He completed a master's program in chemical rocket propulsion at Princeton University under professor Luigi Crocco. |
