To a mixing bowl add both the flours.Add sugar,baking powder and salt.
Mix first then add oil.
Add water and lemon juice.
Whisk well to form a smooth batter.Finally add black poppy seeds.
Fold it do not overmix. Grease the pan with oil then dust with flour(not in pic).Tap to remove excess flour.
Pour the batter into the pan.I used my mini loaf pan.Bake in preheated oven at 180 deg C for 35-40 mins or until golden.Insert a toothpick and check.Cool down for few mins then invert to remove the cake.
Cool down completely atleast for a hour before slicing.