I ate dinner at Jackson Diner during the week of Thanksgiving. There were 4 people in the party. The meal was by far the best Indian meal I've had in New York in years!
We started with 2 appetizers: popped rice with a bunch of other stuff including coriander, lemon juice, and various spices - a cold dish that was fiery and just bursting with flavor - and chicken cooked with a batter that included shredded coconut, accompanied by mango chutney (a sort of sweet chicken dish). For main dishes, we had excellent fish tikka, pureed mustard greens with mustard seeds (which I liked a lot but no-one else liked), a chicken curry which was the only dish that was not great (not much flavor, the chicken itself just OK), and terrific masala dosas (better than at my East Village standby, Madras Cafe) which had coriander and onions in them, in addition to the usual potatoes and chana. The sambhars were also delicious, and we were provided with a dal which was spicy and not bland.
Everyone had drinks (masala chai and sweet lassi for me, beers for the others), but we were way too full to have dessert.
The restaurant was not dirt cheap, as the cost of the meal, including tip, came out to a quite acceptable but not negligable $27.50 apiece.
I recall reading some posts to the effect that Jackson Diner has gone downhill and been replaced by some other place(s) as "best Indian." I can only say that my meal there was one of my best meals in the past year or two, anywhere.