I wrote this up over on the October 2022 COTM thread for Thali, by Maunika Gowardhan.
This is deceptively simple with a flavor that is more than the sum of its parts. The green chiles and curry leaves really impart a lot of flavor and the tamarind paste at the end rounds out the sauce with a nice tang. I used local fluke fillets and some shrimp from my freezer that needed to get used up.