Sir all idli and dosa dishes came from tamilnadu only yeh i agree that masala dosa is Karnataka dish but the dosa was yeh its famous dish in hotels of southern India but the origin was from tamilnadu
The dosa was originated at tamilnadu all masala dosas all other types of dosas are derived from it
So tamilnadu deserves it
Sir i too like the sometimes crunchy and sometimes softy medhu vada sorry i missed it
Masala dosa of Karnataka, Andhra, Tamil irrespective of the origination of masala dosa I still love to eat this. But I remember there used to be one of my Tamilian friend who was from Tiruchirapalli he used to bring two masala dosa only for me and we both enjoyed while we used to eat together.