None from 12 colleges in eight districts under Dinajpur Education Board passed in this year's Higher Secondary Certificate (HSC) examinations.
The result of the examinations was published across the country yesterday.
A total of 44 students appeared in the examinations from the 12 colleges. Five colleges are in Rangpur, three in Lalmonirhat, two in Thakurgaon and the rest in Nilphamari and Kurigram.
Controller of Examiniation Tofazzur Rahman said they would ask for explanation from the colleges about the bad result.