Want to know how to have a great meal at Passage to India in Bethesda? Order the roti plain, (it will come out hot and fresh and crispy) and turn to the back page of the menu for their condiments, especially the pickles and the spices. And....then just stop there. Or order anything else. The pickles and the spices are so good, they could make footwear taste delicious.
For the record, other items I tried were the potato dish from the South Indian section, the lotus stem from the North Indian section, the black lentils, and the lamb korma. The potatoes, lotus stem, and lentils were beautifully spiced, carefully prepared, and thoroughly satisfying. The lamb was forgettable. They have many interesting vegetarian selections here, this is probably where the gold is.
Getting back to the condiments: go, go, go and try these. This is one of Washington's best spots for a Chowhound.