This unfortunately has been the case for decades.
It seems the poor who can ill afford it produce prolifically while the wealthy educated who want the best for their children don't.
Can you imagine what the world population would look like had China not introduced the one child policy.
Of course India will not do that. It's a democracy.
Free contraceptives in India would be a start.
Seem to remember something on TV some time ago about an American doctor who volunteered his services to do vasectomies. Most men were scared of losing function. He found it hard to find takers and even resorted to paying them. Think he was paying their days lost wage plus.
One chap had 19 children by different wives.