250 gram of bottle gourd, remove the outer skin and seeds. Diced into small pieces. Pour some coconut oil, add mustard, let it crack followed by add 1 teaspoon of chanadal and 1 tsp moong dal, add green chillies (4 chillies cut into small pieces), add turmeric, add salt as per taste, add bottle gourd. Close the lid and cook for 10 mins. Check whether it's cooked. At last, add the grated coconut and mix it.
Note: don't add water