Wash and soak Urad Dal for 6-8 hours (or overnight). Drain and pressure cook with 2 cups water, turmeric, green chillies and 1 medium tomato till done and slightly mushy - about 3-4 whistles.

Let the pressure come down on its own.

In a pan, heat oil, splutter cumin seeds and asafoetida. Now add the diced onions, ginger + garlic (i using), remaining tomato, salt and saute well till onions are browned and tomato turns mushy.

Add the spice powders one by one & saute till oil leaves the sides, now add the cooked urad dal and mash up well.

Let it simmer for 5-7 mins on medium heat.

Check for salt and garnish with chopped cilantro and serve hot / warm with flatbreads / rice