Prepare the Paste: In a mortar and pestle or a small mixer jar, coarsely crush the garlic, green chilli, ginger, fresh coriander, and dry coconut.
Temper the Spices: Heat the oil in a pressure cooker. Add mustard seeds and cumin seeds. Once they pop, add the asafoetida (hing) and curry leaves.
Sauté the Onion: Add the roughly chopped onion to the cooker. Sauté it lightly until translucent (do not let it turn completely brown).
Cook the Paste: Stir in your freshly crushed garlic-ginger-coconut paste. Sauté on a medium flame for about 2 minutes until it smells wonderful.
Add Tomatoes & Turmeric: Mix in the turmeric powder and chopped tomatoes. Cook for another minute until the tomatoes soften slightly.
Add the Main Ingredients: Add the soaked toor dal, drumstick pieces, and raw mango pieces into the pressure cooker.
Spice it Up for the Raw Mango Drumstick Curry: Add salt to taste, Kanda Lasun Masala, and Garam Masala. Sauté everything together for 2 minutes on low heat.
Add Water & Boil: Pour 1.5 glasses of warm water into the cooker. Mix well and wait for the curry to come to a gentle boil.
Pressure Cook: Once it starts boiling, lower the flame completely. Put the lid on the pressure cooker and cook for exactly 2 whistles.
Serve: Turn off the stove and let the pressure cooker cool down completely on its own before opening. Your flavorful Raw Mango Drumstick Curry is ready to eat!