Preheat microwave at 180°C.
In medium sized bowl, add water, lemon juice and sugar and mix it well.
Now add turmeric powder and oil and mix it.
Now in another bowl sieve whole wheat flour, baking powder and baking soda all together.
And add water mixture gradually and mix it well.
Now set cupcake liners into mould.
And pour the batter into them.
Sprinkle black raisins on top and bake them for 20 mins into preheated microwave.
So your delicious cupcakes are ready to serve!