Preheat oven to 355°F or 180°C
Take a 6-inch round springform pan and line it with parchment paper and grease it with butter spray
In a wide mixing bowl add yogurt and baking soda; mix well
furthermore add sugar, oil, kewra water, and yellow food color; mix well
Sieve and add flour, baking powder, and cardamom powder
mix just until all the ingredients are incorporated; avoid over mixing
Over-mixed batter yields a dense cake
Add the batter to the prepared cake pan and tap the pan twice
Bake for 16-19 minutes or until a toothpick/skewer inserted comes out clean
Cooldown the cake for 10 minutes and carefully flip the cake on the rack, remove the parchment paper, and allow the cake to cool completely