[1] He was the second son of Maharaja Sri Panch Sir Thutob Namgyal, and was educated at St. Paul's School, Darjeeling and at Pembroke College, Oxford.

He worked to dissolve the greed that occurs in vested interests and tried to unify Buddhists by renovating monasteries and their roles.

[4] When Alexandra David-Néel was invited to the royal monastery of Sikkim, she met Sidkeong Tulku Namgyal, at that time Maharaj Kumar (crown prince).

Prince Limbin (Ma Lat's father) and his family soon returned to Burma (to live in Rangoon) and Sidkeong visited them there in 1912.

The wedding was initially set for 1913 but then delayed because of the king of Sikkim Thutob Namgyal (Sidkeong's father's) deteriorating health.