Well, the arranged marriage is for the higher status pajeets to marry other other status pajeets and enforce the caste divide.
Though India has a huge gender imbalance as well in favor of boys. And a history of female infanticide to the point it's impossible for a lot of men in shittier parts to find a wife.
There is a foreign bride market or trafficking most likely involved to resolve part of that issue.
A way to make India implode, would be to heavily restrict immigration and cut down on IT outsourcing to India.
