Wash the tour dal and then in a pressure cooker add in the toor dal. Also add Tomatoes, Green Chilli and Hing and the required water.
Pressure cook for about 6 whistles or till the Dal is fully cooked. Wait till the pressure gets released all by itself and then open the cooker.
Open the cooker and mash the Dal well. Next add in Turmeric powder, salt and water if required mix everything well.
In a tempering pan add in oil once it heats up add in Mustard seeds, Cumin seeds. Let it splutter then add in grated ginger and garlic ,Dry Red Chilli and Curry leaves fry everything well and pour it into the cooked Dal.
Cook the dal for another 10 mins in medium flame .Mix everything well and switch off the flame. Garnish with a tsp of Ghee and close the vessel till served.