It is 'Karnataka Rajyotsava' often called Kannada Rajyotsava. But thats exclusive and misrepresenting. Rajyotsava Day is a day to celebrate the formation of the state of Karnataka on the basis of the lingustic demarcation of state boundaries. However, Tulu, Konkani, Sanketi and Kodava belong just as much to Karnataka as Kannada.
It is a Naadu Habba not a Bhashye habba. Incidentally, the Bhashe was instrumental in deciding the naadu.
Nobody clarifies and the misnomer continues.
