The best place to get fresh spices anywhere in the city. Kohinoor is my go-to everytime I attempt to try an indian recipe at home. Run by extremely friendly and helpful shopkeepers, who are happy to help you find that one-last-and-completely-unpronounceable-ingredient you have scrawled on the palm of your hand.
Yeast and flour for naan, mango powder, blocks of paneer, fresh cloves, asafoetida for digestion, Fantastic fresh spice blends, ground and unground seeds, a wide variety of dried legumes, tamarind, tamarind pastes, canned saag, Chyawanprash, (http://www.dabur.com/Products-Health%20Care-Chyawanprash) neem toothpaste, spicy jars of pickled things, vegetables I cannot identify and those pre-made packed indian meals for one.
Most fantastically Fresh curry (fenugreek) leaves for making sambar. (Right inside the door)
The incredible aforementioned fresh ground spices run about $2.99 per 200 grams for the usual suspects (coriander, cumin, paprika, turmeric).
as Kat mentioned, there is another Kohinoor just across the road which is the best place to buy things like tiffins http://israelity.com/wp-content//2010/02/tiffin-lunch-box-set.jpg to tote your rice and dahl to work with you. They are in the $15-$20 range.
Love this store.