Bangladesh Bank is set to introduce a newly designed Tk 500 banknote on December 4, themed on the country's historic and archaeological architecture. The note, bearing the signature of Governor Dr. Ahsan H. Mansur, will first be issued from the central bank’s Motijheel office before being distributed nationwide. The 152mm × 65mm note features the Central Shaheed Minar on the front and the Supreme Court of Bangladesh on the back. The design incorporates a blooming national water lily motif and predominantly green tones for a modern and secure look. It includes ten advanced security features, such as color-shifting ink, a red security thread that changes color under light, tactile marks for the visually impaired, and UV-visible elements. The Royal Bengal Tiger watermark and electrotype ‘500’ enhance authenticity. Bangladesh Bank confirmed that all existing notes and coins will remain valid, while collectors can obtain sample notes from the Money Museum in Mirpur.