Combine toor dal with water and turmeric either in a stovetop pressure cooker or in an Instant Pot. Cook till the lentils are very soft and mushy. About 3 whistles in a traditional pressure cooker and 8 minutes in Instant Pot.
½ cup Toor Dal, 1½ cups Water, plus more as needed
You can use the pot-in-pot method and cook the mango pieces along with the green chilies in the instant pot (see the video). Or you can add them directly to the lentils and cook until tender.
1 Small Raw green Mango, peeled, seeded and diced, 2~3 Green chilies, slit
In a medium size saucepan on medium heat, add oil. Once the oil is hot enough, add the fenugreek, mustard & cumin seeds. Once the seeds start to splutter, lower the heat and add the dry red chilies. As they turn bright red, stir in asafetida and the curry leaves.
2 tablespoons Oil, ¼ teaspoon Fenugreek seeds (menthulu/ methi), 1 teaspoon Mustard seeds, 1 teaspoon Cumin seeds, 2 Dry red chilies, halved, ¼ teaspoon Asafoetida/ hing, 8~10 Curry leaves
Next add the cooked mango pieces, turmeric and mash lightly with the back of the spoon. Cook for 4~5 minutes for the flavors to mingle.
½ teaspoon Turmeric
Add cooked dal, red chili powder, salt and simmer for 4~5 minutes. Add more water if the mixture looks too thick. Stir in jaggery, if using, in the end. Mix well and serve.
1 teaspoon Red Chili powder, adjust as per taste preference, 1 teaspoon Jaggery (optional), To taste Salt