Unaware of the strike by the student chapter of main opposition Awami League, many parents brought their children to schools in the morning but returned home as the institutions -- governmental and non-governmental -- were closed.

A professor of Bangla at Dhaka University (DU), Azad, now under treatment at the Combined Military Hospital, suffered severe head and jaw injuries in the machete attack by unidentified assailants on Friday night.

The Progressive Students' Alliance, student wing of the left leaning political parties, called another strike at educational institutions across the country for today to protest police excesses on the DU campus.

The Secondary School Certificate (SSC), Dakhil and SSC vocational examinations will remain out of the strike call.

At least 100 people were injured when police used batons and teargas to break up a student demonstration against the stabbing of the author of over 50 books, the latest targeted against fundamentalists.

The violence erupted when the university students tried to break through a barbed wire police fence to reach the secretariat and pelted officers with stones.