Peel potatoes, wash and cut each potato in four pieces.
Heat oil in a karhai or medium pot, add spring onions and fry to golden brown. Add red chillies, salt, coriander seeds, turmeric powder, and red chilli powder; mix. Fry for 2-3 minutes by adding a little water if necessary (to prevent burning).
Add potatoes, mix and cover pot and let cook on low heat until potatoes are done and tender. When potatoes are done, fry for about 2 minutes and remove from heat and serve.