Ginger-from tea to a curry, it spices everything up. Cough cure too, in the right form.
Garlic adds a different kind of taste to cooking. Pickles get extra zest from it.
Cinnamon (dalchini) is a great-smelling additive to many a dish. Also tea. Saw a plant/tree from whose bark we get this.
Elaichi (cardamom)-Mom used this in every non-veg curry.
Clove- Promise used this in a toothpaste ad- and rightly so. It's grandma's cure for a toothache.
Pepper- History is peppered with wars and colonisation, over this spice. Vasco Da Gama went around in (large) circles, and found it in Kerala.
Cumin and coriander seeds (dhania) are like a staple in any curried concoction. Green coriander and Pudina (mint) also add spice to anything they get into.