India and south Korea are the most closest countries in Asia! They both are so similiar... And of course they have many differences but it doesnt mean they're not close! They're nit the closest countries but they don't hate or dislike one another.... They both have other countries they're close to as well.
Because they're both actually very similiar so indeed they have a lot in common so therefore they are very close countries! :) they're language is very similiar too. And India is a very big fan of kpop which happens in south Korea, so india must know a lot about south Korea, and kpop stars and idols travel to India, China and all around Asia just to see there fans!!