Take the three dal in a bowl, wash in running water and soak for 15-20 minutes.
Cook it in a pressure cooker for two whistles. Do not remove until the pressure is released.
Take ghee in a pan, add cumin seeds. As they splutter, put the onion and ginger garlic paste.
Saute for sometime. Add the tomatoes and some water to it. Let cook for two minutes.
Add salt, chilly powder, garam masala powder and coriander cumin powder to it. Let the flavours imbibe.
Add curds and chopped coriander to it. Mix well.
Take the cooked dal and mix it well with the ladle. Put it along with the other ingredients.
Let cook for sometime.
Mixed Dal is ready to serve.