What were the prisoners held by Bangladesh in 1971 primarily referred to as?

What were the prisoners held by Bangladesh in 1971 primarily referred to as?

Explanation

After the Bangladesh Liberation War in 1971

Many Pakistani military personnel were captured and held by Bangladesh as Prisoners of War (POWs). 

Date: 26 March – 16 December 1971 (8 months, 2 weeks and 6 days)