What makes a country 2nd or 3rd world? Intuitively, I'd say India is straddling both categories, they're doing 2nd/1st world things in space, but vast swathes o

What makes a country 2nd or 3rd world? Intuitively, I'd say India is straddling both categories, they're doing 2nd/1st world things in space, but vast swathes of their population still live in decidedly 3rd world conditions. I guess as far as passports are concerned, considering India 3rd world isn't far off the mark.