Wash all the dals together and soak for 2 hours Then in pressure cook them upto 2-3 whistles. Transfer the dal into a bowl and beat a little. Heat little ghee in pan and add the chopped onoin and fry for till it turns transparent. Then add turmeric powder and red chilli powder,and dal and bring to boil.Add little water if necessary as this dal needs to be little thick. When dal boils, lower the flame and let it simmer for 5 minutes and keep aside. Then heat remaining ghee in a small pan, add mustard seeds and cumin seeds, when they splutter add asafoetida,green chilli, curry leaves, garlic, ginger and fry for a few seconds.Add the tadka to the prepared dal. Garnish with chopped onions and chopped coriander.