Wash / Rinse the toor dal under running tap water for 2-3 times.
Soak the toor dal for 15-20 mins. After 20 mins, drain the water used for soaking.
Switch on the Instant Pot, Press Saute Mode. Once it displays On or Hot, add oil and cumin seeds.
Once the cumin appears roasted, add the finely chopped onions and ginger garlic paste. Saute until the onions are translucent.
To this, add finely chopped tomatoes. Sauté until the tomatoes are slightly mushy.
Now add the soaked and drained toor dal, spices and salt to taste. Add Water, mix and Cancel Saute Mode.
Cover the instant pot with lid and pressure cook on High for 8 minutes. Allow Natural Pressure release (approximately 15-18 mins). Release any leftover pressure manually and wait for the pin to drop before opening the lid.
Open the instant pot lid, use a ladle to mix the lentils. Prepare for tempering.
Heat a small tempering pan, add ghee, cumin and mustard. Once mustard crackles, add hing, red chili powder and switch off flame.
Add the tempering to the dal, garnish with finely chopped coriander leaves or cilantro. Mix and serve with rice or roti.