Bangladesh Chhatra League (BCL) activists allegedly attacked students while they were managing traffic at Jigatala intersection in the capital on Saturday.
A group of 30-35 BCL men equipped with sticks swooped on the students in front of the BGB Jigatala gate around 2:00pm, leaving some of them injured.
They retreated when the students chased them with sticks and whatever they got around them, according to UNB.
However, the BCL activists regrouped and attacked the protesting students again around 3:30pm, leaving a number of the students injured.
Later, chases and counter-chases took place between the two groups.
Finally, members of Border Guard Bangladesh came out of adjacent Pilkhana headquarters and brought the situation under control.
The agitated students also vandalised a police box in Science Lab area during the melee.
In Mirpur-2, around 50 youths, believed to be BCL men, swooped on the protesting students with sticks at 12 noon.
The attackers chased the students towards Mirpur-10 upto Mirpur-2 Shopping Complex.