1. Wash Toor dal well until water runs clear. Wash and soak tamarind in warm water for 10-15 mins.
2. Pressure cook toor dal with turmeric for 3-4 whistles or until well cooked. Meanwhile, in a medium-sized heavy bottomed pot, cook covered chopped beans, diced carrots and green chana in just enough water, until soft but not mushy. Season with salt and keep aside. When the cooker has cooled, whisk turmeric into the cooked dal, stir to mash well and pour into the pot with cooked veggies.
3. Alternatively, to cook lentils in open pot method, bring water to a boil in a medium-sized pot over high heat. Reduce heat to medium, add the washed toor dal or pigeon peas and cook semi covered, and simmer until lentils are soft, about 30 minutes. Add more warm water if needed to keep them from drying out.

Dry roast:

1. While the veggies and dal cook, place a kadai or medium skillet over medium heat for dry roasting the spices. When the skillet is hot enough, drip few drops of ghee, pop in the black pepper and roast until they just begin to splutter. Remove onto a plate. Add bengal gram, red chillies, curry leaves, cinnamon bark, coriander seeds and lastly black gram and roast on low to medium heat until bengal gram and black gram turn golden brown and curry leaves are crisp. Switch off, add hing and grated coconut and sauté until coconut smells toasty or hissing sound subsides.
2. Squish soaked tamarind to pulp. In a blender, grind the dry roasted ingredients along with tamarind pulp and some water to a smooth paste.
3. Pour this paste into the pot with cooked veggies and dal. Adjust the salt, add more water to fix the consistency if required (it will be relatively thick, like that of Dosa batter) and bring to a gentle boil over low-medium heat, stirring intermittently (to avoid sticking burning at the bottom), about 15 mins. Simmer for 5-10 mins before switching off.

For the tempering:

1. Heat oil in a small kadai or saucepan over high heat. When the oil is hot enough or shimmering, add peanuts and reduce heat to medium. When they begin to splutter, toss in bengal gram and sauté until bengal grams turn golden brown. Tip the tempering on the simmering Kootu, cover immediately and keep aside.
2. Serve hot with a spoon of ghee drizzled over hot rice or grain of your choice and a side of papad.