Joy Govinda High School, next to Aminur's house, was where he started his education and sports journey.
He excelled in inter-school football and athletics, and after passing matriculation in 1968, he joined Government Tolaram College in 1969.
In 1970, he represented Railway Blues in the Dhaka Second Division League and after the Bangladesh Liberation War, joined B.G.
In 1977, he was the club captain of Sadharan Bima CSC in the First Division, and in 1979 was league champion with Team BJMC.
Aminur made two official appearances for the senior international team, both coming at the 1980 AFC Asian Cup in Kuwait, against Iran and China, respectively.