wonderful pictures and account, docsconz. the ‘mangosteen’ used in fish curries is gamboge, locally known as kudampuli.garcinia family but not mangosteen. kokum is another relative. also, upthread , i believe the coriander seed going in to the caggage is hulled urad it’s more commonly seen in the hulled , split version. adds a wonderful nutty element. for superb vegetarian recipes from the region, you don’t need to look much further than Peppertrail's cookbook!