Clean the mackerel by cutting only its head and fins. Check this video to know how to clean mackerel. Make a slit on each side of the fish bone. To make a slit, start from the tail and continue till its neck. Keep aside for 20minutes.
Marinate the fish by applying chilli powder, turmeric powder and salt.
Grind green chilli, grated coconut, chopped coriander and garlic into a thick paste. Don’t add water while grinding. Finely chopped onions can be added to the mixture after grinding.
Mix tamarind paste in the chutney and add a pinch of salt.
Stuff this mixture into the mackerel on both sides of the fish bone.
In a plate, add rava, red chilli powder, turmeric powder and a pinch of salt and mix well.
Roll the stuffed mackerel on both sides by holding firmly to avoid the stuffing from coming out.
In a pan, add 1 tablespoon oil.
Place the stuffed mackerel in it and fry for 10 minutes on one side. Drizzle little oil on top.
Turn it carefully and fry on the other side for another 10 minutes.