Jewel of India is a fairly decent, standard North Indian restaurant. I liked their aloo gobi and their fried cheese pakora (which I no longer eat since becoming vegan).
The service was usually decent. But the last time I went there I actually had to send a dish back (my standard aloo gobi) because it just tasted awful. I'm not sure what was wrong with it, as I had ordered that dish multiple times before. The owner was not happy with me and gave me a dirty look and didn't attempt to replace the dish. I think I was black-listed from that point forward; fortunately, I was just a few weeks away from graduating, so it didn't really matter.
The ambience is sort of romantic/quiet/classy and I found this was a good place to take a professor for lunch. Back then, Dartmouth students could get a discount, but I'm not sure if they still have that promotion.