Peel and chop the potatoes roughly. Discard the skin. In a sauce pan add the chopped potatoes, water, salt, and boil until the potatoes become soft. Strain and discard the water from the boiled potatoes.

Mash the potatoes using a potato masher or with fingers. Avoid mashing the potatoes to the smooth texture, it should be little chunky.

In a pan heat oil, add the mustard seeds and allow to splutter. Add the urad dal, asafoetida(Hing), curry leaves, sliced onion, green chilies and cook until the onion becomes soft.

Add the turmeric powder, sprinkle little amount of water and mix well. Cover and cook for a couple of seconds.

Add the mashed potatoes, salt and mix well. Check for the salt and garnish with chopped coriander leaves.