>>India's problem can only be fixed by population control.
And with tax accountability.
>>If Sanjay Gandhi hadn't been an idiot and forever poisoned the idea of population control, India would be much better off, especially if we can get the population to around 300M - 500M
Wrong solutions lead to mistakes from which it is hard to recover. The ideal solution was industrialization and planned urbanization. Urban population levels today have largely stabilized, and in places steadily falling.
Most couples these days don't have more than one kid. So really we will see a decline in population levels as standard of living, and urbanization levels increase. This is a long term solution, there is no short term solution.