China surreptitiously conducted three to four “low yield atomic explosions” in occupied Tibet in Mar 2005 to aid in clearing mountainous terrain to divert the Yarlung Tsangpo river, known as the Brahmaputra in India, from north to south, reported blogs.timesofindia.indiatimes.com Aug 29, citing classified Indian intelligence documents. China’s plans to conduct such explosions were widely reported around that time, but were never officially confirmed.