- Heat the oil in a pan , add all the ingredients and sauté on a medium flame for 2 to 3 minutes. Keep aside. 
- Enter Step 
- When cool blend in a mixer to a smooth paste, adding little water if required. 
- Soak the cashew nuts in ¾ cup of water for half an hour and drain. 
- Heat a tsp of oil in a pan and fry the ground masala paste with a little water till the oil separates from the masala. 
- Add the drumstick, red pumpkin and brinjal pieces and the soaked cashew nuts and mix well. 
- Enter Step 
- Cover and cook on a low flame for 15 minutes till the vegetables are almost cooked and the water has dried up. 
- Add coconut milk and bring to a boil. 
- For the tempering, heat the oil in a small pan and add the mustard seeds and curry leaves. 
- When they crackle, pour the tempering over the curry. 
- Serve hot with steamed rice.