"From tomorrow, the army will strictly ensure social distancing and home quarantine in all parts of the country," said Lt Col Abdullah Ibne Jayed, Director Inter Service Public Relation.
Strict action will be taken against those who would disobey instructions issued by the government, he said.
He said 525 teams of Bangladesh Army were performing various activities to aid the local administration.
The Army has been working from March 25 under "in aid to civil power".
Earlier on March 23, the government decided to deploy members of Armed Forces -- Army, Navy and Air Force - to tackle the coronavirus situation. Armed forces were deployed on March 24.
Bangladesh announced the death of another coronavirus patient on Wednesday and three new cases. So far, the country has confirmed six COVID-19 deaths and 54 cases.