In 1960s, Rinpoche met his root guru H.H. Dudjom Rinpoche Jigdral Yeshe Dorje in Kalimpong. Dudjom Rinpoche is widely considered as one of the greatest masters of the 20th century and is the mind manifestation of Padmasambhava.
In early 1967 Rinpoche organised a great transmission by Dudjom Rinpoche for Rinchen Terdzod (Precious collection of treasure teachings) to thirty tulkus and thousands of monks and lay people at the lotus lake at Rewalser, Himachal Pradesh. Thereafter, he was appointed by Dudjom Rinpoche as his successor in transmitting this teaching.
Rinchen Terdzod, the Treasury of Precious Termas, is one of the Five Great Treasures of Jamgon Kongtrul the Great. It is a complication of termas that had been discovered up to his time. Simply to receive the oral transmission and empowerments of the Rinchen Terdzo is said to take from four to six months.
In 2010 Rinpoche was invited by the Nyingma Ngaguyr Kama Tradition Preservation Association to give the oral transmission at Bodhigaya. Kama is the Oral Transmission Lineage of the Nyingmapa and includes the entire inner tantra of Kuntuzangpo. Rinpoche had received the transmission from H.H Dudjom Rinpoche.