"The first is on the Chennai metro where the familiar sign is used on all the stations."
He "saw the second sign in the midst of an industrial area in Mumbai, the building apparently is part of the original Bollywood."
Many thanks Alan! I think they're really good and if anyone else sees interesting uses of the London Underground Logo on their travels please feel free to send them in to me. Or just let me know if you've even seen the Tube roundel used anywhere unusual in the UK too.
Below is a reminder of just a handful of Metro signs from around the world and you can really see how London's logo has influenced some of them. Another characteristic they have in common is that most use the initial letter of the system's name in the logo and London is quite unusual as it doesn't!