Put soaked dal (green gram) in pressure cooker. Add water two times the quantity of soaked dal. If there is one cup soaked dal, add two cups water. Add salt to taste, and cook dal in pressure cooker. After one whistle in cooker, lower the gas flame and cook for another 2-3 minutes.
In the meantime roast cumin seeds with asafoetida in a pan or over a tava. Roughly grind them.
When the pressure in pressure cooker is reduced naturally, open the cooker. Dal should be properly cooked and totally mashed. Take it out in a serving bowl.
Add grated ginger, green chilies, chopped tomatoes, black salt, and black pepper. Also add half of cumin asafoetida powder, and half of chopped coriander (cilantro). Also add lemon juice. Mix them all well.
Heat ghee in a tadka pan, or a small pan. Add whole red chilies and fry them till dark red in color. Add these fried chilies and ghee on top of dal.
At the time of serving, garnish with some cumin asafoetida powder, and coriander leaves. Serve hot freshly made dal.
Add water twice the amount of soaked dal or three times the amount of dry dal. If you have not soaked dal cook for some more time.
Dal should be well cooked.
If you want add green chutney on top while serving.