Sieve the flour.
Cream the sugar and curd.
Add baking powder and baking soda.
Keep aside for 5 minutes.
Add oil and vanilla essence.
Gradually add the flour, blending with the wet ingredients.
Divide the batter into three bowls.
You shall need three 4" round baking tins.
To the first bowl add cocoa powder, mix well.
Pour in a greased and lined tin and bake.
To the second bowl add pureed strawberries and pink food color, mix well and pour in another greased and lined tin and bake.
The third batter will be baked as it is. Pour it into the third tin and put to bake.
Bake at 180 deg C , bake for 10-12 minutes or until a skewer comes out clean.