May 31, 1971
- A platoon of soldiers led by Lt. Mahbub ambush Pakistan army base at Jogmohonpur south of Comilla. 12 Pakistan soldiers are held casualties in the assault.
- Freedom fighters ambush Pakistan soldiers at Shingerbeel in Comilla. 13 Pakistan soldiers are killed in the ambush.
- A team of 6 freedom fighters led by Subeder Abdul Haque attacks on Shaldah Railway Station occupied by Pakistan army. 2 OP of Pakistan army are killed in this operation.
- Source: Bangladesh Liberation War Museum