There are two types of Chilli Powder, Red Chilli Powder and Kashmiri Red Chilli Powder. Red Chilli Powder is prepared from only long dried Red Chilli which is easily available in the market. Kashmiri Red Chilli Powder is prepared from Kashmiri Mirch. We use Red Chilli Powder to make the dishes spicier while Kashmiri Mirch to give flavour and colour to the recipe. Kashmiri Mirch is not spicy. If you want to make both the spices separately then you can grind them separately and store in air tight container. Use it as per your requirement of spiciness and colour to the recipe.