Preheat oven at 350 F (180 C). Line a loaf tin with baking paper. Set it aside.
In a large bowl, combine mango pulp, sugar, melted butter, whisked yogurt, and vanilla extract. Mix well until the ingredients are fully incorporated.
Place a sieve on top of the large bowl making sure it does not touch the wet mixture.
Add all-purpose flour, cornstarch, baking powder, baking soda, cardamom powder, and salt. Sift the dry ingredients into the wet ingredients.
Mix until they are just combined and there are no dry bits of flour. Take care not to overmix the batter.
Pour the batter into the prepared loaf tin. Tap the pan on the counter to remove any air pockets.
Bake in preheated oven for 45-50 minutes or until the toothpick inserted comes out clean.
Let the cake cool in the pan for 10 minutes, then transfer it to a cooling rack.