Thats more of an anthropological issue, Yasir.
There are mainly three races, Caucasoid, Negroid, and Mongoloid. Later on Australoid was treated as the fourth one. India is surrounded by countries as well as being explored by different countries in different time. Its a multi race country where the major population falls under Australoid. For this race, the skin color is darkish, and genital color is deeper.
If you have seen Caucasoid or negroid, they have almost the same color. Most mongoloids has the same color too. But rest of the Australoid and a big part of Mongoloids have deeper genital area.
Do women like to look at penis, it varies person to person. most cases I can sense, they want to feel in vagina, hand and mouth in dark, means they dont like the visual effect. But a lot loves to see in light or broad day light.
I saw a documentary on vagina museum, a guy makes plastered vagina on real woman, and he has a collection of 400 plus. All are in the wall. Unfortunately there is no penis museum anyone has made. Else girls would love to visit there to see the diversity. Anyway, my hunch is, woman love to see penis, but they dont want to say openly.