You need the following :
Red chillies : 15 (spicy variety)
Fenugreek Seeds : 1tsp
Mustard Seeds : 1tsp
Fry everything separately on a hot tava. Powder them together and keep it in a airtight container. You can use it to make chutney , or any kind of instant pickle you would like to make.
Red Chilli Powder
Red Chillies : 20 (spicy variety) (Guntur variety)
Red Chillies : 10 (less spicier version which imparts color most of the times) (Byadgi/sambal chilli/kashmiri)
Fry both of them with half a teaspoon of oil on a hot tava till they are crisp. It may take about 3 mins on a hot tava. Let them cool. Powder and store it. The resulting powder is very very spicy...use it with caution. Over the years I have started disliking store bought powder so I tried this and it worked well.
Storing Curry Leaves
Separate curry leaves from stem and store in a airtight container. You can store curry leaves for more than a month like this :) in refrigerator.