You have been to many veg Indian restaurants, where you peruse the menu and decide what to order. If you are like me, you want to order 2 or 3 of the entrees because they are so different in flavors, but you want multiple anyhow.
Your solution is here: affordable lunch buffet that is the bomb. Ask them what is vegan, or check the menu yourself to compare. The menu is generous in having vegan items plentiful. It's nice not to worry.
My favorite vegan Indian foods are all here, because really, I just like dosas, soups (sambar!), curries and tamarind sauce. The soups are delightfully right, but flavorful. The rice is not as exciting as it could be, but nice for plain white rice. If you want more flavor, go for a biryani or rice dish.
The curries and entrees are unique for the buffet, some are not on the menu, so you actually get a better deal at the buffet! Again, just ask for what is and what is not vegan. You will be happy, because there are many choices that are vegan (about 75% of the roughly 20 choices).
Cons: Not 100% vegan