Cook the cow pea beans till done. Drain and set aside.
Peel and chop the ash gourd into medium sized pieces.
Put the ash gourd along with the thin coconut milk, green chillies and salt into a pressure cooker and cook for one whistle. This vegetable cooks really fast.
Allow the pressure to go by itself.
Open and add the cooked cow pea beans. Give it a good mix and simmer for a couple of minutes.
Add the thick coconut milk, mix, adjust seasoning and switch off. You shouldn't boil the mixture, it only needs to be heated or else it will split.
Pour the coconut oil over and add the curry leaves. Keep it closed till time of serving.