Sagar is a chain of vegetarian restaurants in Delhi serving predominantly South Indian food at very low (for me, anyway!) prices. The most commonly ordered items are dosas -- around $1 each, and masalas, also less than $1 per order. Sharing a few appetizers and having a dosa for your self is more than enough for a filling lunch or dinner, and with a drink or two you'll spend less than five bucks!
A dosa is a paper-thin pancake made from lentil rice flour that's been fermented. Trust me, it's delicious. Depending on which kind you get, it comes with various fillings either inside or on the side, and an array of chutneys and dipping sauces to choose from.
My favorite was the "Paper Dosa" (see first photo below), which was massive and crispy and extremely light. You crack off a bite-sized piece and scoop up some masala with it, then pour on a bit of hot sauce and pop it in your mouth. YUM!
The decor at Sagar is quite nice and almost formal, but it's really a casual place. We had a huge group of about 15 of us, and they quickly set up a large table for our party.
At the end of the meal, Suzanne and I were persuaded by our Delhi friends to try the local delicacy, called "pan masala" - a sort of digestive. Sorry to say, but it was horrible! Tasted like flowery bath soap wrapped in plastic. It is in fact made of betel nuts, a bunch of spices and natural perfumes, and chewing tobacco, all wrapped up in a betel leaf! Yum (not). Well, at least we tried, and our friends did tell us it's an acquired taste! Suzanne at least managed to swallow it down, whereas I discreetly (I hope) spat it in my napkin. :)
All in all, I highly recommend Sagar for an excellent South Indian meal.