This file is from Wikimedia Commons and may be used by other projects.
The description on its file description page there is shown below.
Summary
DescriptionBangabhumi Flag (Variation 2).svg
English: Flag of separatist movement of Hindu Republic of Bangabhumi (Bongobhumi) (1973–2006) by Banga sena
বাংলা: বঙ্গভূমি হিন্দু প্রজাতন্ত্রের বিচ্ছিন্নতাবাদীদের পতাকা (১৯৭৩–২০০৬)
Date
Source
Own work based on scholarly article written by Mohammad Zainal Abedin, a respected Bangladeshi researcher and journalist on November 28 2005 published in Media Monitors Network.
This image shows a flag, a coat of arms, a seal or some other official insignia. The use of such symbols is restricted in many countries. These restrictions are independent of the copyright status.
This image of simple geometry is ineligible for copyright and therefore in the public domain, because it consists entirely of information that is common property and contains no original authorship.
Heptagon
I, the copyright holder of this work, hereby publish it under the following license:
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
http://creativecommons.org/publicdomain/zero/1.0/deed.enCC0Creative Commons Zero, Public Domain Dedicationfalsefalse
Captions
Flag of separatist movement of Hindu Republic of Bangabhumi (Bongobhumi) (1973–2006) by Banga sena
বঙ্গভূমি হিন্দু প্রজাতন্ত্রের বিচ্ছিন্নতাবাদীদের পতাকা (১৯৭৩–২০০৬)