Combine broth, garbanzo beans, garlic, turmeric and cumin seeds in large saucepan; bring to boil. Reduce heat and simmer soup 15 minutes. Whisk eggs and lemon juice in medium bowl until well blended. Gradually whisk 2 cups hot soup into egg mixture. Return egg mixture to saucepan; stir over medium-low heat until heated through, about 5 minutes (do not boil). Add cayenne pepper. Season with salt. Ladle soup into bowls. Sprinkle with mint and serve.
