People are born with the complexion they get, anglo-indians & those from the north are generally fairer, it's simply genetics & environment, whereas people from the south or the plains are generally darker.. I understand that it's hotter down there and I suppose that over time, the body has adapted, tanning is simply the body trying to adjust to increased uv exposure....
Where people in India, (i imagine women & the wealthier classes) want to look fairer and more european, we've got equal numbers of people in the west obsessed with being tanned, despite the obvious risk of skin cancer.......... idiots....... be happy with yourself, you don't owe anybody for anything.... imo