Boil 750 ml water. Add 10-12 drumstick pieces, 250 gms cauliflower and salt. Boil until the vegetables are 80% cooked. Keep aside.
Grind 1/4 cup fresh coconut, 3 ripe desi tomatoes and a small fistful of coriander stems to a smooth paste.
Heat 4-5 tbsp oil. Add 1/2 tsp mustard seeds and 1/2 tsp cumin. Let them splutter.
Add 1/2 cup chopped onion, 2 chopped green chilies and 2 sprigs curry leaves. Fry the onions until light golden.
Add 1 tbsp freshly ground ginger garlic paste and fry well. Add the coconut tomato paste and fry for 3-4 minutes.
Add 1/3 cup water, 1/4 tsp turmeric, 1/2 tsp roasted cumin powder, 1 tbsp chili powder, 1 tbsp coriander powder and 1/4 tsp garam masala. Fry well until the raw smell of tomatoes leaves.