The same Nehruvian thinking finds its way into "English advantage" thinking today.
But only 1-2% of Indian work & live outside the state they were born. This is not dissimilar to the European Union, which has no "link language."
Let us invest in mother tongue education to develop children's intelligence.
I have presented plenty of evidence of "mother tongue advantage" in my book and this is backed by many scientific studies. But "English advantage"?