Preheat oven to 180C / 350F. Line 12 ⅓ cup muffin tin holes with your favorite cupcake liners.
Sift flour and baking powder into a large bowl. Set aside.
Place softened butter, sugar and ground cardamom in a large bowl.
Use an electric mixer to beat the butter mixture until pale and creamy. Add eggs, 1 at a time, beating well after each addition.
Add flour mixture and milk, in alternating batches, and beat until just combined.
Divide mixture evenly among the cupcake tin holes. Bake for 20-25 minutes, or until a skewer inserted in the centers comes out clean. Transfer to a wire rack to cool.
Using a cupcake corer or piping tip, gently core the center of each cupcake and fill with jalebi crumbs. Leave about half inch on the bottom of the cupcakes.