Take a bowl. Mix Refined flour,sugar, baking powder, soda, oil, curd, milk together for 15 minutes in same direction.

Now, in other bowl pour half of the batter and add the melted chocolate and mix well.

Now, take small katoris or cups. Grease with oil. Pour, 1 tsp batter of each of batter one by one.place in stand in kadhai for 40 minutes. Let it be cool.