Sieve the flour, baking powder , baking soda four times.
In a mixing bowl add sugar , oil , yoghurt and whiak very well. Now start pouring dry mixture into wet mixture and mix very well. Mix little by little milk to make a smooth bater. Mix 1 tbs of sprig vanilla essence.
Now preheat the pan for 10 minutes. Grease the tin and pour the bater , tap twice.
Place the tin and bake the cake for 45 minutes. When its done check with toothpick , cool it down and demould the cake.
Slice the cake and serve.