Wash the potatoes to remove the dirt from them and peel them off with a peeler.
Cut the potatoes in half, lengthwise. Keep the flat side down and cut lengthwise again.
Next, cut them into triangular shaped thin slices.
In a wide pan, add some oil on medium heat. Add mustard seeds and let them splutter.
Add cumin seeds and let them splutter. Then, add asafoetida and turmeric powder.
Transfer the prepared potatoes and mix them well.
Mix some salt, red chili powder, Kashmiri red chili powder, and mix everything well.
Cover the pan with a lid and let the potatoes cook on medium high heat for 3-4 minutes.
Stir the potatoes, cover the pan with a lid, and cook the potatoes for another 3 minutes on medium high heat.
Next, mix the potatoes, cover the pan with a lid, and cook the potatoes on low heat for about 3 minutes or until cooked well.
Transfer the grated coconut and cook the potatoes without covering them with the lid for 2 minutes.
Add coriander leaves, mix, and serve.