Want to remove dark spot and dead skin cells from your skin then you can use rice flour. Yes, the rice flour. You can prepare skin scrub using it that can also give you fairer skin. Scroll down to know the ingredients and process.
Besan (gram flour)
Take 1 tbsp rice flour in a clean bowl and then add 1 tbsp besan.
There is enough milk to make a paste and then apply this on clean skin.