Grease a 6" round tin with oil and line the bottom with parchment paper. Preheat the oven at 165 C for 10 minutes.
Take eggs in a bowl and whisk with an electric whisk till the eggs become fluffy
Mix sugar and whisk with the electric mixer again.
Add oil and vanilla extract. Whisk till the mixture is smooth.
Sift flour, baking powder and salt 3-4 times.
Fold dry ingredients in the wet ingredients in two parts using a spatula.
Add milk and mix it gently.
Pour the batter in the prepared pan and tap the pan on the counter 2-3 times. This helps to remove the air trapped in the batter.
Bake the cake at 165 C for 25-30 minutes. Insert a toothpick in the centre to check if the cake is done.
Cool the tin for 5-10 minutes before taking out the cake.
Cool it on a wire rack before cutting.