Born in the late 1860s, Aminullah Khan spent part of his early life as a refugee in Lahore, likely due to the turbulent political environment in Afghanistan during that period.
Aminullah Khan's influence continued to grow, and he was appointed as the President of the Court of Arbitration in 1923, a position which demonstrated his legal and administrative expertise.
In 1924, he became the Governor of the Southern Province, where he managed regional affairs, demonstrating his leadership and governance skills.
Later, in 1935, he served as the Minister of Justice, further consolidating his status as a key figure in Afghanistan's political landscape.
Throughout his life, Aminullah Khan was regarded as a respected leader among the Jabbarkhel Ghilzai and played an important role in the governance of Afghanistan during the early 20th century.