It’s part of the Karnataka Sangha which also houses an art gallery, a handloom shop and an auditorium(?). Compared to other authentic restaurants, it’s quite popular, almost always crowded, and a relatively risk-free choice. A meal wouldn’t usually cost upwards of Rs. 300/person either.
They serve the usual idli-vadas, dosas (rava & rice), uttapams; however, each day has a fixed special which seems to be the standout. We had the Saturday special, the bissi bele bath, which was pretty tasty. And most people from Karnataka whom I’ve talked to about the place seem to love it, so can’t help but presume its quite authentic.
Because of how the popular the place is, wait times often go up to an hour, so plan accordingly; and they run out of the daily specials pretty fast, but they take pre-orders on the phone so do that if you think you might be late. And don’t forget to end your meal with the holige or and the filter coffee.