Flag of British Bengal
<a href="//commons.wikimedia.org/wiki/User:Samhanin" title="User:Samhanin">Samhanin</a>
CC BY 3.0
<span class="int-own-work" lang="en">Own work</span>, source: <a href="//commons.wikimedia.org/wiki/File:Indian_Embassy_in_London_wall_plaque.jpg" title="File:Indian Embassy in London wall plaque.jpg">Indian Embassy in London wall plaque (British Bengal Badge)</a>