500 Taka

Bangladesh Bank introduced this note during a period when the 500 taka denomination carried real purchasing weight — roughly equivalent to several days' wages for an unskilled worker at the time of issue. The series ran through multiple signature varieties as governor appointments changed, making signature identification the primary tool for dating individual specimens within the 2003–2008 window.

The security thread is a plain embedded type rather than a windowed or colour-shifting strip, a specification that was already considered modest by international standards when the note entered production.