From one of my favorite places to shop - Marketplace Handwork of India comes this typical street food called "Pani Puri" which is basically crunchy balls of wheat with a spicy filling of potatoes filled with ice cold spicy minty water. Its an explosion of flavors in your mouth and Indians love it!!!  Here's a website that has some tasty recipes.
 http://www.manjulaskitchen.com/  Follow the link. They are mini puris stuffed with potatoes. Just before eating you pour into the top a little lemon juice, ginger, coriander, tamarind liquid. Awesome!