Flag of Bangladesh at the Battle of Karbala. According to "CIA World Fact Book", the green used in the flag represent the lushness of the green landscape of the country. On 13 January 1972 the flag was modified. The map from the center was removed and the red disk moved towards the hoist. The red in the center is a symbolic representation of the blood Bengalis shed in the Bangladesh Liberation War. According to Bangladeshi government specifications, following is the specification of the national flag: The national flag of Bangladesh is flown on all working days on important government buildings and offices, e.g.,
Act on National Flag and Anthem set down in the Prime Minister's Proclamation No. 57 of 1870, which stipulated that the flag have a seven-to-ten (7:10) ratio, with the red disc off-center by one-hundredth of the flag's length toward the side of the hoist. The background of the flag is white, and the disc red, but the exact color shades were not defined in the 1999 law. Further explanations from the government merely stated that the red color is a deep shade. Specifications published by the Ministry of Defense in 2008 defined the shades of red for the flag. During deliberations in the Diet about this