Astrologer Gyalnang Lobsang Norbu was born on 31 December 1944 in Tibet. he joined Mentsee khang on 1 May 1971. In those days, he also studied astrology besides working in the institute. In 1973 he served as an assistant and accountant in the construction of the main office building in Gangkyi.
In 1975, he completed his astrology course. In 1976 he served as an accountant and secretary in the main office and then appointed as General Secretary till 1984. He was appointed as the Assistant head of Astrology Department in 1984 and as the treasurer. He was again appointed as the General Secretary from July 1994 to 2000.
On 18 August 2000 he was deputed as the Head of Astrology Department and served in the same post for five years. He served as the General Secretary of the institute for three terms. He was appointed as an advisor to the Astrology Department on 10 April, 2005 and served in its capacity till his retirement on 01 July 2009. He has served the institute for 38 years from 1971 to 2009.
He passed away on 18 March 2011 at Chauntra Retired Staff Quarter.