Following the Emergency, Karan Singh was elected to the Lok Sabha from Udhampur in 1977 on a Congress ticket party had not split into Congress(I) and Congress(U) factions till then, and became Minister of Education and Culture in 1979 in Charan Singh's cabinet, representing Congress(U), which had split from Indira's Congress. Notably, Charan Singh became Prime Minister after the fall of Janata Party government headed by Morarji Desai. And Charan Singh himself resigned without facing Parliament even for a day as he was not sure of having a confidence motion passed in his favour. Karan Singh contested the 1980 Lok Sabha election on a Congress(U) ticket and won. In 1989–1990, he served as Indian Ambassador to the US, and this experience became the subject of a book he wrote, "Brief Sojourn".