Wash fish well, give cuts, heat oil, add grinded green masala with all dry masala, tomatoes, add coconut milk, brown onion, fry well, add pomfret with ¼ cup water, cover and cook till fish done about 10 mins.
Remove fish and keep aside.
Add yogurt to masala.
Add boiled rice on top of masala, top with yellow color, leave it on dum for 15 mins.
Mix biryani, remove in a platter, top with cooked pomfret, serve immediately.