I just covered this on my Slog, and wanted to be sure to paste it in here, as well, as this is of great hound interest. No photos for this one, at least not yet.
Nawab (2 Hudson St, Yonkers; 914-909-9700) makes the best North Indian (they're actually Pakistani) food I've ever had anywhere. They're even better than Jackson Diner during its heyday, before it moved to its present location (and went way, way downhill).
The cooking is brilliant, and the clientele gives the impression of driving quite far to eat here (it's worth a ride from most anywhere....note that you can take Metro North from Manhattan). It's on a dodgy back street in downtown Yonkers, but they charge a respectable price (as well they should), with entrees $15-20.
Sunday buffet lunch is the time to go. This is a rare chef who actually thrives on buffets; puts his heart into them, and changes them up every week. Even better, though you just missed it, is the break-fast buffet at sundown during Ramadan (features way more dishes than the Sunday buffet). But best of all is their feast for Eid al-Fitr, commemorating the end of Ramadan. Management also owns a Kubrickian ballroom, seemingly from the 1920's, right behind the restaurant, and once a year they present a dizzying array of steam table offerings there, along with live music. It's something to behold. This year, it will be served Sunday from 1:30 through to evening. Sorry for the short notice. But if you miss it, worry not. Just go and eat any time. It's revelatory. If you need to bone up on the cuisine, we cover North Indian thoroughly in my app, Eat Everywhere.
Along same lines, see "The Best Sichuan I've Ever Found in NYC" <https://www.chowhound.com/post/sichua...> from a few months ago, and "The Best Mexican I Ever Found in NYC", just posted here: <https://www.chowhound.com/post/mexica...>