Full Breakdown
The Nanda Devi Incident: A Cold War Espionage Operation
2/4/2026, 3:55:50 PM
Overview of Operation High Altitude Test
The Nanda Devi incident traces its origins to a chance encounter at a cocktail party in Washington, D.C., where General Curtis LeMay, chief of staff of the U.S. Air Force, met National Geographic photographer Barry Bishop. Inspired by Bishop's account of climbing Mount Everest, LeMay proposed a surveillance operation to monitor China's nuclear capabilities from the Himalayas. This led to Operation High Altitude Test, which aimed to place a 123-pound plutonium-powered telemetry unit on Nanda Devi, the second-highest mountain in India, to observe Chinese nuclear sites following their first atomic test in 1964.
Challenges and Failures
Launched in the fall of 1965, the operation faced immediate difficulties. A team of Indian and American mountaineers, led by Captain Manmohan Singh Kohli, struggled with harsh weather conditions and altitude sickness. They managed to cache the nuclear device but could not install it due to worsening weather. Subsequent attempts to recover the device between 1966 and 1968 were unsuccessful, raising concerns about potential radioactive contamination of the Ganges River, a vital water source for millions of Hindus and a critical agricultural basin. However, extensive searches by the Indian government found no evidence of contamination, leading to the conclusion that the device was likely buried by an avalanche or lost in a crevasse.
The Aftermath and Public Disclosure
In 1969, the CIA and India's Intelligence Bureau conducted a final joint mission, Operation Gemini, which successfully installed two non-plutonium-powered monitors in Ladakh and Arunachal Pradesh. However, as satellite technology advanced, the need for such ground sensors diminished, effectively ending these operations. The details of Operation High Altitude Test remained classified until journalist Howard Kohn published an article in 1978 that reignited public interest. Kohn's report contained inaccuracies, suggesting that the Central Bureau of Investigation oversaw the operation and that Indian leaders were unaware of the CIA's involvement.
In response, Indian Prime Minister Morarji Desai publicly confirmed the joint mission, acknowledging the lost device and the uncertain environmental threat it posed. Desai's transparency helped mitigate potential backlash against the CIA and positioned him favorably with the Carter administration, fostering closer U.S.-Indian relations.
Broader Implications and Criticism
Desai's handling of the situation was viewed positively by U.S. officials, who recognized the importance of transparency in defusing public concern. This incident ultimately contributed to warmer bilateral relations, leading to agreements in various sectors, including education and technology. However, some critics in India argued that recent media coverage, including a New York Times article revisiting the incident, added little new information to a well-known story. They pointed out that more comprehensive accounts, such as "Spies in the Himalayas," co-authored by Captain Kohli, already existed.
Conclusion
The Nanda Devi incident serves as a significant case study in Cold War intelligence operations, highlighting the complexities of international collaboration and the importance of transparency in governance. As the narrative of Operation High Altitude Test continues to be revisited, it offers valuable lessons for policymakers and intelligence practitioners today.
Verbatim Quotes
- “ambassador to India, changed his mind and concluded that, in this case, sunlight had been the best disinfectant.” — Robert Goheen, U.S. Ambassador to India
- “The Indian people should remember, Desai cautioned, that their leaders had approved Operation High Altitude Test at a time when the nation appeared to face an existential threat from China.” — Morarji Desai, Prime Minister of India
- “is that their hiss hiss history happened overseas, so they dodo don’t know what it means.” — Salman Rushdie, Author
