Baba Harbhajan Singh joined the Punjab regiment. He was killed in 1968 near the Nathu La in eastern Sikkim, India. Harbhajan Singh's early death at the age of 22 is the subject of legend and religious veneration that has become popular folklore among Indian Army regulars ("jawaans"), the people of his village and apparently soldiers of the Chinese People's Liberation Army (PLA) across the border guarding the Indo-Chinese border between Sikkim and Tibet. The official version of his death is that he was a victim of battle at the Nathu La, a mountain pass between Tibet and Sikkim where many battles took place
Harbhajan Singh at the age of 15 years and 9 months for a youth One Day International against South Africa. He took 1/19 from seven overs in an Indian win. In 1996–97, Harbhajan was promoted to the Punjab Under-19s and he took 15 wickets at 20.20 in three matches, although he managed only two runs with the bat. This included match figures of 8/54 in an innings win over Jammu and Kashmir. Harbhajan made his first-class cricket debut in late 1997 against Services, during the 1997–98 Ranji Trophy season. He took a total of 3/35 in an innings win but was dropped