History:

Kasu: A name whispering of ancient echoes. Its possible this name is new, specific to a region, or comes from an obscure source. Without knowing its cultural background, tracing its origins is tough.

Description:

I checked lots of places, but couldnt find it.

This names connection to Krishna is strong. Krishna is the main deity, and this name is often seen as another form of Krishna, although people disagree on that. Radha, Krishnas beloved, is also closely linked. Big festivals like Janmashtami (Krishnas birthday bash) and Holi (a colorful party often tied to Krishnas fun-loving side) are all about this name.

KASU is a short and unique name, unlike names like Robert which have many variations. Its unlikely to have a lot of common nicknames or shortened versions. You might see minor spelling changes like "Kasu" (lowercase k), but thats about it. More details about the names origin would help find other variations.