The ghost of the two missing radiators has returned back to haunt the sub-Himalayan range as an expert has predicted a major disaster if the devices are not recovered.
Yoichi Shimatsu, former editor of Japan Times and now a filmmaker, was quoted by Nepal media as saying, "The two missing radiation detectors have posed a threat to the Himalaya region, foreboding a major catastrophe, which may lead to contamination of the two major rivers of Asia – Ganga and Brahmaputra."
The two radiation detectors were allegedly planted by Western governments on the Nanda Devi range in the early sixties to spy on China's nuclear programme, soon after the country conducted its first nuclear test.
Various search operations carried out by intelligence agencies and the Indian authorities have failed to detect the two missing detectors ever since.
The news of the missing detectors had created a flutter in the country few years back, forcing the then Morarji Desai government to make a detailed statement.        
Earlier, the Indian Government had allayed perceptions of any serious threat to the region due to the missing radiation detectors, which contains plutonium.
However, Shimatsu says the danger of potential environmental disaster has increased with the loss of another radiation sensor on Mt Everest.
The G-7 Group had planted a 'weather robot' on the peak in 1991. When the mountaineering team that planted the robot came down it could not contact it, making them realize that the device was lost.
"The growing heat from the plutonium in these lost devices will cause them to break free and contaminate the surroundings, which in turn will affect Tibet, India's North East and Bangladesh," Shimatsu claimed.
The fallout would be poisoning of the Ganga and the Brahmaputra, which rises from the Himalayan ranges.
He says the catastrophy would resemble that of the Chernobyl explosion in Ukraine on April 26, 1986, which is reckoned to the worst accident in the history of nuclear power.
 Shimatsu appealed to the SAARC countries for concerted efforts to find the missing devices to avert a possible disaster.