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The poster shows the people from different parts of world, expressing themselves by reading, writing, singing, playing musical instruments and chanting mantras. The poster shows the importance of mother tongue in preserving the cultural heritage and diverse colors of the world.
The top right shows the slogan "Languages Matter" translated in different languages.
Please Note: I have just copied the translation done in different languages by google translation tool. Kindly ignore the fact, if it doesn't make the absolute translation.