Prepare the Mustard Paste
Soak mustard seeds (and poppy seeds, if using) for 15–20 minutes.
Grind with green chilies and a little water to form a smooth paste. Set aside.
Marinate the Fish
Rub hilsa pieces with salt and turmeric. Let rest for 15 mins.
Fry the Fish (Optional)
Heat mustard oil until it reaches smoking point.
Lightly fry the fish pieces for 1 minute per side (optional, traditional Odia style prefers fresh poached fish).
Prepare the Curry
In the same pan, add panch phoron or a pinch of nigella seeds.
Add the mustard paste and cook on low heat for 2–3 minutes.
Add turmeric, red chili powder, salt, and water to make a thin curry base.
Gently slide in the fish pieces.
Simmer Gently
Cook uncovered for 5–7 minutes until fish is done and curry thickens slightly.
Do not stir vigorously — hilsa is delicate.
Rest ' Serve
Turn off heat and cover for 5 minutes before serving.
Serve hot with steamed rice and green chili on the side.
Why This Curry Is Special
The mustard oil + mustard paste combo brings bold, earthy depth
Hilsa’s natural richness melts into the curry — no onion or garlic needed
Odia style keeps it minimal, focusing on freshness and balance