They are saying that if you increase the population, there will be more workforce.
More workforce will bring more dollars to India.
IMHO, the world is getting overpopulated. Especially because of these countries. We need a smaller population to improve the quality of life.
If India’s population is about half. That’s 700 million; their inflation will fall down. This will improve the Rupee value because there won’t be any loans or imports.
Now the question is, who will do the menial work? Well, of course, the automation.