Sift whole wheat flour and keep aside. In another bowl, take yogurt and sugar. Whisk till sugar dissolves.
Add baking powder, baking soda and mix. After a few minutes, it will turn frothy.
Add oil and mix. Slowly add the sifted flour little by little and make a lump free batter.Add choco chips, cocoa powder and mix to combine but do not over mix.
Line a muffin tray and fill fill each one upto 3/4th and sprinkle more chocolate chips on top,Bake in a pre heated oven at 180 degree C for 15 minutes or till a skewer inserted in the center comes out clean. Remove from oven and transfer to a cooling rack.
Chocolaty chocolate chocolate chip cupcakes are ready to be served.