Heat oil in a pan, add chopped green chilies and chopped ginger.
Add cumin seeds and cook for a minute till they start to pop a little.
Now add a pinch of asafoetida/hing and also add chopped tomatoes.
Cook tomatoes for 6-7 minutes and add turmeric powder, red chilli powder, salt to taste and mix well.
Now add peeled and cubed potatoes, sliced carrots and shelled peas and add 2-3 tablespoon water if required.
Cover the pan/kadahi with a lid and cook for 15-20 minutes till potatoes are well cooked.
Keep stirring it in between so that it does not stick to the bottom of pan.
When potatoes are done sprinkle garam masala and mix well.
Garnish with chopped coriander leaves and serve hot with chapati paratha or poori.