1) The base of the logo is yellow that represents the overall concept of this festival and more & more prosperity over the globe.
2) The Uppar symbol represents the globe.
3) The two human faces symbolizes different colors, languages, cultures that different from each other but when they mix up together or get together the world gets most seven colors of life and creating happy environment for all cultures of the world.
4) The font also diversifying with each other by having less space between two letters and the dot over " i " letter having star to signify individual, family of International Cultural Community
Thats why this logo symbolizes the best logo for this International Festival of Cultural Diversity.