Is there cultural differences between North and South India?
its true tho most famous indian ceo's have south indian heritage for example the ceo of Microsoft is from telangana a south indian state https://en.wikipedia.org/wiki/Telangana
>that clear Aryan-Dravidian delineation
Aryans from the North migrated en mass to the south and vice-versa, so there really isn't such clear-cut differentiation among the people of India these days.
However, there are castes which have married among their community who have preserved their heritage, this is clearly evident among Brahmins. So, don't be surprised if you meet fair southies and dark northies.
The more there are mudslims, the higher is the fertility rate.
North Indian are streetshitters and South Indians are masterace