Indians... do you actually HATE brown/dark skin?

My Indian friend said to me that Indians 'hate dark skin... like they really hate it'... she put enthasis on the word 'hate'. I was aware of India's caste system, but 'hate' is such a strong word and i can't tell if that's an exageration as some people do use the hate word quiet freely...This sentence has stayed on my mind since so thought i'd ask...

How is walking through society like?