Mr Faheen Ahsan was a much laid-back, quiet, gentle person who taught Mathematics. He hardly uttered anything outside the class room and even in class he was all business.
He was one of those people who would be in a group yet no one would notice. He was like a wallflower minding his business hearing attentively to everyone and saying very little. We could see him in college walking from class to his office with his head down and a small shy grin on his face.
When he spoke he had a quiet gentle voice. None of his students can say they had any issues with him or his teaching. He was also involved in Duty Society (see this picture) which provided assistance to the needy students.