First, take a cup of lukewarm milk and add 1 tsp lemon juice and keep it aside for 10 minutes. Milk will curdle.
After 10 minutes mixed Maida flour, sugar, baking powder, baking soda & salt in parat. Now add curdle milk along with butter. Start kneading to make a soft, non-sticky dough. Rest dough aside for 10 mins. Here I make two portions of dough as I added 1/4 tsp cocoa powder in one portion of dough.