Take a pressure cooker and add 3 tablespoons of mustard oil in it. We have taken out this 3 tbsp of mustard oil from the kadai in which potatoes were fried. Again, you can make it in regular pan if you don't have pressure cooker.
As this oil is still warm (not boiling hot), so first add red chilli powder in it. You need to be careful about the temperature of oil while adding red chilli powder. Too much hot oil will burn your chilli & thereby your dish will be spoiled. Wait a bit if oil is too much hot.
Give a mix to chilli & while the flame is still off, add asafoetida, caraway seeds, black cardamom, dry ginger powder, fennel powder, cloves and salt.
On the flame to low and give a mix to all these spices.
Add curd and immediately saute for a minute otherwise curd gets curdled.
Drop fried potatoes and mix them properly with the spices. Handle gently and don't over do otherwise potatoes may break.
Add water in pressure cooker. The quantity of water depends on how you are going to eat dum aloo. With rice needs extra gravy than with roti. We added water as per chapati requirement.
Put the lid of pressure cooker on and go for 2 whistles on high flame.
Your kashmiri dum aloo are ready. Serve hot with rice or roti after garnishing with crushed caraway seeds.