soak rice in water for 15 minutes
heat 3 tbsp ghee in wok and fry chopped onion until translucent.
add ginger and garlic paste with red chili powder and fry until oil separates.
add yoghurt salt and stir well.
pour half of coconut milk and stir quickly to incorporate everything.
Add raw fish pieces into the gravy very carefully
add green chilli and cook for 5 minutes
flip Hilsa pieces gently as Hilsa is extremely delicate and fragile.
Add rest of the coconut milk and cook for 10 minutes with cover.
once done, keep the fish covered until needed.
heat 1 tbsp ghee and add whole Garam Masala.
now add half of the gravy from Hilsa along with warm water. Bring the mixture to boil.
Add previously soaked rice into the mixture and at least cook for 10 to 12 minutes until rice is half cooked.
Add salt and cook with cover for another 10 minutes.
Now arrange the Hilsa pieces on bed of rice and put the Gravy on it.
Add green chillies.Cover and cook for 5 to 7 minutes on simmer.
once done, remove from flame and serve.