One of my favorite restaurants in Las Vegas. And one of the best Indian restaurants I have been to anywhere in the world. The menu may or may not be "completely" traditional Indian cuisine, but their interpretation is quite well done.
I love everything about this place. The ambiance and the food is just spectacular. They have recently introduced a $45 5 course tasting menu which is a great way to introduce (or re-introduce) yourself to Indian fare. When ordering from the menu, I have never been steered wrong in any selection. Each dish has been truly outstanding.
Some changes to the menu have also introduced an Apricot and Raisin Naan which is unbelievable and can be eaten on it's own.
The biggest surprise about Origin India? They may well have the best cocktails in all of Las Vegas, and at non-Strip prices. Each cocktail is made by hand with care with fresh ingredients by their master bartender, Joseph. No pre-made fruit juice mixes in these drinks. Try the cucumber/pear martini: one of the best cocktails I've ever had the pleasure of tasting.