Preheat the oven to 350°F (175°C). Line a 12-cup muffin tin with cupcake liners.
In a medium bowl, whisk together flour, baking powder, baking soda, salt, and spices.
In a large bowl, cream together butter and brown sugar until light and fluffy. Beat in eggs one at a time.
Mix in pumpkin puree, chai tea, coconut milk, and vanilla extract until well combined.
Gradually fold the dry ingredients into the wet ingredients, mixing until just combined. Fold in the chopped dried mango.
Divide the batter evenly among the cupcake liners, filling each about 2/3 full.
Bake for 18-22 minutes, or until a toothpick inserted into the center comes out clean. Cool in the pan for 5 minutes, then transfer to a wire rack to cool completely.
For the frosting, beat cream cheese and butter until smooth. Gradually add powdered sugar, coconut milk, vanilla extract, cinnamon, and lime zest. Beat until light and fluffy.
Once the cupcakes are completely cool, frost them generously. Sprinkle with toasted coconut flakes and candied ginger for garnish.