>>14374838Doesn't matter, even if just the top slice gets it their average IQ still skyrockets.
India's Brahmin caste (70 millions) already has an average IQ of 110, imagine if they raised it to 140 over a couple generations. A population of 70 million people with 140 IQ can get insane things done, and that's not even counting the other castes.
Now, IRL this probably won't happen because people in other countries will warm up to genetic engineering for IQ over time so it won't be an India specific thing, but still.