Both whole and powdered spices have important roles in Indian cooking. Whole spices are commonly used when you want to build aroma during the early stages of cooking, while powdered spices can distribute their flavor more evenly throughout a dish.
Green cardamom pods, cloves, cinnamon sticks, black peppercorns, and star anise are examples of whole spices frequently used in Indian cooking.
Whole spices are useful when:
Powdered spices are convenient when you want consistent distribution throughout a recipe. They can be particularly useful in curries, marinades, spice blends, and dry seasonings.
Neither form is universally better. The choice depends on the recipe, desired flavor, cooking method, and convenience.