The Indian government gives more resources to small schools on the assumption that smaller villages are poorer to avoid multigrade teaching to improve learning.
However, these new findings suggest it is not multigrade teaching _per se_, but larger classes, which have negative consequences.
Also, smaller does not neccesarily mean poorer.
So, by trying to overcompensate, you mess things up. Being sensitive to situations in a region as diverse as India proves once again ever important.