Indian Paradise has a solid lunch buffet. At $11.95 maybe a little more expensive than usual for a buffet but it's in North Scottsdale so not completely unexpected either. Nice interior and even looks like the patio could be a pleasant dining experience when there's nice weather, surprising considering that the restaurant is located in a fairly bland, out of the way strip mall.
The food was very tasty and will certainly sate your desire for Indian. Comparatively, it was middle of the road as far as the Indian food I've had--not the best but not the worst. But if you love Indian food like I do, you won't be disappointed. The lunch buffet has a lot of the standard dishes: chicken tikka masala, chicken curry, aloo matter, palak paneer, tandoori chicken, etc. Tikka masala is usually my favorite but theirs was just ok. I really liked their chicken curry and aloo matar.
Service was good; everyone was friendly and attentive.
Also, don't panic when you don't see the naan at the buffet like I did. They bring you your own basket. :)