Heat oil in a pressure cooker, add jeera & once it crackles, add garlic cloves and saute on medium for a few seconds till fragrant.
2 teaspoons groundnut or any neutral flavored oil, ½ teaspoon jeera, 4 garlic cloves
Add curry leaves, sliced onions & saute for 2 minutes on low till fragrant.
½ cup curry leaves, ½ cup sliced onions
Add tomatoes, salt and cook for 2-3 minutes on low till they soften a bit. Add drumsticks and saute for a few seconds. Add soaked moong dal, 2 ½ cups of water and close the lid of the pressure cooker. After the first whistle, cook for 10 minutes and let it depressurise by itself.
½ cup sliced tomatoes, ½ teaspoon salt, 4 drumsticks, 2 tablespoons moong dal, 3 ½ cups water
Add 1 cup of water to a pot, add the drumstick pieces for garnish and cook for 3-4 minutes just until tender and set aside.
3 ½ cups water, 1 drumstick
Open the cooker. Add the drumsticks & aromatics to a mixer grinder and grind to extract the pulp. Pour in a strainer and separate the fibre & other solids from the pulp. Transfer the drumstick pulp to a pot, add pepper powder and boil for 1-2 minutes. Take off the heat, add 2 sprigs of coriander leaves and keep covered until serving.
½ teaspoon pepper, 2 sprigs of coriander leaves
To serve, add 2-3 cooked drumstick pieces to a bowl, add the soup & serve hot.