Wash and soak channa dal and toor dal for 15 minutes.
Pressure cook both dals and white pumpkin with turmeric powder and water for 4 whistles.
Grind coconut, cumin seeds, green chillies with little water to a smooth paste.
Add salt, coriander leaves, and the ground paste to the cooked dal and pumpkin.
Mix well and cook until it reaches a rolling boil.
Heat oil; add mustard seeds, urad dal, and red chilli.
Add asafoetida and curry leaves.
Pour tempering over the kootu and mix.