[1][2] After Bangladesh achieved independence, he completed his bachelor's degree from the University of Dhaka and went to the US for higher studies.
[7] Karim, after completing his master's degree and PhD, served as a faculty member of two American universities for seventeen years.
In 2007, he returned to Bangladesh and joined BRAC University as a professor in the Economics and Social Sciences Department.
[6] Nobel Laureate and prominent economist Muhammad Yunus mourned his sudden death, terming him as a "fearless and principled intellectual".
[8] After his death, leftist student organizations threatened to desecrate his body if it was brought to the Shaheed Minar.