Marginal Revolution Restaurant Reviews

http://www.marginalrevolution.com/marginalrevolution/2009/10/dining-tips-for-manhattan.html#comments

Indian:
-Forget about 6th Street. Go to Lexington and 28th. Try Chennai Garden on 27th. Had some very good food there recently. There is also Kalustyan's on Lexington, a deli/spice store. They sell prepared foods, and there is a small space upstairs where you can eat.

New York Magazine has good reviews.

Anything with more than four starts, at least 75 reviews, and one dollar sign on Yelp.com probably won't disappoint.