I visited this restaurant for Lunch in August 2014.
There was a good selection of vegan indian dishes on the buffet menu. However, the rice was not cooked properly, the curries did not taste authentically Indian and at 15 Soles (+extra for Indian breads to accompany the rice and curries) it is not great value compared to the other vegetarian placed in Cusco.
However, its central location means it may be worth a visit.
Cons: Not authentic Indian taste