6. Harbhajan Singh – 17 years and 265 days
Like Vijay Mehra, Indian off-spinner Harbhajan Singh also made his Test debut at the age of 17 years and 265 days. Harbhajan made his Test debut in March 1998 during the home Test match against Australia at Bengaluru. While Australia won that match by eight wickets, the off-spinner had the bowling figures of 23-1-112-2 and 6-1-24-0.
At present, Harbhajan doesn’t play regular professional matches, but he is still active as a player in IPL. The off-spinner has played 103 Tests, 236 ODIs and 28 T20Is where he has bagged 417, 269 and 25 wickets respectively.