Pre heat oven at 180 degree
Mix 1-1/2 cup flour,1 cup sugar ,1/2 baking soda,1-1/2 baking powder, 1 tsp vanilla essence ,1/8 tsp salt and 1 pinch yellow food color.
Beat 2 eggs, 4 tbsp butter and 1-1/ 4cup curd in a bowl.
Now add slowly flour mixture in curd mixture and allow mixing.
Now take 1 cup of mixture from prepared batter and add 2 tbsp coco powder.
Grease cake mould, first pour vanilla batter then add coco batter in greased moulds
Then also can make marble design with help of fork.
Place cake in oven to bake for 40-45 minutes