Wash and rinse both dals until the water runs clear.
Add them to a pot or pressure cooker with turmeric, salt, onions, tomatoes, chilies, ginger, and water.
Pressure cook until soft and creamy. If using Instant Pot, cook on high for about 12 minutes and natural release for 10.
For the tempering, heat oil or ghee in a small pan. Add cumin seeds, garlic, and ginger.
Once golden, stir in red chili powder.
Pour the hot tempering over the cooked dal and mix gently.
Finish with cilantro and kasoori methi if using.
Simmer for a few minutes so everything comes together.