Karen, do you even wear clothes? In the world I live in, breasts are usually covered, thus explaining the difference in color. Think about your comment first before you click OK.
^In the world I live in, your breasts aren't pale white while your face is dark, regardless of what you wear. And I think it's clear by now that covering her cleavage is not really Anchal's specialty, so when she covers up maybe you'll have a point.
By your logic, the area of her stomach showing should be the same color as her boobs since it's "usually covered".
The reason why her boobs look paler then her face is (A), they're probably under clothes most of the time so they don't get touched by sunlight HENCE the paleness, (B), the light used for the shoot could be reflecting off the skin in a way to make them look pale, or (C), both.
By your logic, the area of her stomach showing should be the same color as her boobs since it's "usually covered".