Add oil, sugar, curd and milk in a bowl and whisk until well combined.
Now, sift in the flour, cocoa powder, baking powder and baking soda to the same mixture and mix to form a smooth, lump free batter.
Transfer the batter into a 5.5 X 3.5 inch rectangular mould and bake at 180 degrees Celsius for 30-35 mins or until a skewer inserted in the centre comes out clean.
Once the cake is out of the oven and demoulded, place a bar of chocolate on top of the cake and heat in a microwave at regular settings for about 1-1.5 mins, till the chocolate just begins to melt.
Pour chocolate flavoured milk around the loaf cake before serving.
Recipe by Bake with Shivesh at https://bakewithshivesh.com/triple-chocolate-milk-cake/