Wash dal and rice under running cold water till water runs clear.
Add water and soak dal and rice for 20 minutes.
Now in a pressure cooker add 3 tbsp ghee, cumin seeds, ajwain and hing of hing. Sauté it.
Then add chopped green chilli, ginger pieces, curry leaves and peanuts. sauté it.
Now add chopped carrot, potatoes, green peas, cabbage, turmeric powder, red chilli powder and salt. sauté it.
Add soaked rice-dal mixture and sauté it for 1 minute.
Now add 3 cup water and mix well. Pressure cook khichdi on medium flame for 3 whistles.
Meanwhile in a bowl, add 1cup sour buttermilk and besan. Mix well.
When pressure cooker release its pressure naturally, then open the lid and add buttermilk mixture into khichdi. Mix well.
Cover and cook khichdi for 5 minutes so buttermilk flavored add into khichdi.
Then add garam masala and some coriander leaves. mix well.
Switch off the flame and serve khichdi with melted ghee.