Preheat oven to 180 degree C (356 degree F). Grease a 8 inch round pan with oil and sprinkle flour all over it. Coat on all sides and tap off the excess.
Now take flour, baking powder, salt in a bowl and whisk till combined. Set aside.
Take yogurt, sugar, oil, lemon zest and eggs in a bowl and whisk well.
Add in flour in it and fold gently. Dont over mix.
Spoon this into the baking pan and bake for 30 to 40 mins. Insert a toothpick to check whether the cake is done or not.
Now remove it from oven and let it cool in the tin for 10 mins. Now ease the sides and invert it.
Cool it down.
When the cake is cooling, make icing by mixing up icing sugar and lemon juice. Pour this over the warm cake and slice and serve.
Notes
Don't over mix the batter. Else cake will turn dense.
You can bake the cake in a loaf pan too.
The glaze is optional but it really adds intense lemon flavour and keeps the cake moist.