- chop the kumbalakai / ash gourd / winter melon into small cubes separating seeds and skin. also finely chopped chilli and coriander leaves. keep it aside. 
- in a large kadai, heat oil and add mustard seeds, cumin seeds, urad dal, channa dal, red chilli and hing. 
- when it starts to splutter, add green chilies and curry leaves. saute for 30 sec. 
- then add chopped kumbalakai (ash gourd or winter melon). 
- also add turmeric powder and saute for a minute. 
- now add ½ cup of water. 
- season with some salt to taste. 
- cover with the lid and cook for 5 minutes in low flame. stir in between so that kumblakai cooks uniformly. 
- once they are cooked add fresh/desiccated/shredded coconut and give a good mix. 
- finally add some coriander leaves and serve. 
- serve kumbalakai palya with chapathi or steamed rice and sambar.