 He became actively associated with the Congress Party while attending Aitchison College in Lahore, Pakistan.He was related to Yadavindra Singh who was Maharaja of Patiala and Raja Bhalindra Singh, had close proximity with Mohammad Reza Pahlavi who was the Shah of Iran, took the title of Shahanshah ("King of Kings") in 1967 and ruled from 1941-1979 as the last Shah of Iran.Gurbakshish Singh’s nephews, Amarinder Singh, is currently serving as the 15th Chief Minister of Punjab in India and Raja Randhir Singh is a sports administrator and an ex-Olympian shooter.