In a mixing bowl add in Water ,Vanilla essence, Lemon juice and oil Mix everything well using a whisk.
Along with the wet ingredients now add in the powdered sugar and mix well until the sugar is dissolved, Meanwhile sift together All-purpose flour ,coco Powder, Baking salt, Baking soda and salt at least twice or thrice. This ensures even mixing of the dry ingredients.
Next add in the dry ingredient to the wet ingredient in three or four batches and fold gently with a spatula make sure there are no lumps formed. Next add in the Choco chips and fold once again.
Line a baking tray with parchment paper and pour in the prepared cake batter to the pan. Preheat the oven in 180 deg for about 10 mins and the bake in 180 deg C for about 30 mins or until a tooth pick when inserted in the middle of the cake comes out clean.