As I have stayed near the coastal place in Chennai, all my life, and visited the fish markets with my mother in my childhood. I used to see my mother buying fish from the market and coming home cleaning it and making curry out of it and fry also. The fish used to be very fresh and its gill will be pinkish or reddish in colour. The identification of fresh fish is to see its gills and its eyes should be firm and open. The scales should look firm and shiny. That day the meal will be rice, fish curry, fish fry and rasam , which goes well and yummy too.
Whenever fish curry is made in our home, there used to be demand for fish fry also. fish curry is to mix and eat with rice and fish fry is eaten as a side dish. You can fry it on tava or shallow fry or deep fry the fish. Fish fry is very popular dish and cooked in varieties also. Each house has their own recipe of fish fry. My mother used to prepare this way. You can use any white flesh fish, we often use shankara in tamil like snapper fish or king fish(vanjaram in tamil).
Marination
Frying