 On October 5, 1951, Topgay's younger daughter "Ashi" Kesang Choden Dorji married the Third King Jigme Dorji Wangchuck, creating a new bond so prominent as to cause some discontent among other Bhutanese families.Topgay is thus an ancestor of the current Fifth King Jigme Khesar Namgyel Wangchuck.In 1917, Topgay assumed his father's positions as "Gongzim" (Chief Minister) and Trade Agent to the Government of Bhutan, however he functioned to a large extent as prime minister, foreign minister, and ambassador to India.