Make the Dhansak Masala: Grind all the ingredients into a smooth paste just little water. Set aside.
To make Dhansak: Combine dals, potato, bottle gourd, pumpkin, tomatoes and methi leaves in a pressure cooker. Add 4 cups of water and pressure cook until everything is well cooked, about 3~5 whistles.
Blend the mixture until very smooth with an immersion blender. Alternately the mixture can be strained through a sieve to remove any lumps and make it smooth.
Heat 2tbsp ghee in a pan. Add the chopped spring onions and cook till wilted. Add the dhansak masala and cook for 3~4 minutes or until it doesn't smell raw anymore
Add the lentil & veggie mixture. Cook for 5~6 minutes and add the tamarind pulp.
If the mixture looks too thick, add water to thin it out. Simmer for 5~6 minutes or until the tamarind is cooked through.