Authentic Assamese sour fish curry - Rohu/catla in tangy tomato-lemon gravy with green chilies, mustard oil. Everyday delicacy, 10-min recipe, zero onion-garlic.
Get RecipeAssam's iconic light sour fish curry
Masor Tenga ("fish sour") is quintessential Assamese comfort food - freshwater fish (rohu/catla/katla) in delicate tangy gravy of tomatoes, lemon juice/juice of elephant apple (ou tenga), slit green chilies, turmeric. No heavy spices/onion/garlic, prepared in mustard oil for distinctive pungency. Ready in 10-15 mins, served with steaming rice. Staple in every Assamese household, represents simple riverine cuisine using local bounty.
Key features - light watery consistency (not thick), subtle sourness (tomaato + citrus), minimal whole spices (panch phoron optional), fresh fish steaks with bones for flavor. Variations include dried fish (masor shutki tenga), small fish (pothia masor tenga), seasonal ou tenga for intense sourness. Cultural significance - served during Bihu festivals, community feasts, everyday meals. Health benefits - light digestible, omega-3 rich, vitamin C from citrus.
Traditional 10-minute preparation
500g rohu/catla steaks. Rub salt-turmeric, wash. Slit 4-5 green chilies lengthwise.
Heat 3 tbsp mustard oil, fry panch phoron (1 tsp). Add 2 tomatoes chopped, turmeric, salt. Add 2 cups water, fish pieces, green chilies. Boil 8 mins.
Add juice 1 lemon/2 tbsp ou tenga extract, coriander leaves. Simmer 2 mins. Light watery consistency perfect.
Simple pantry staples
Steaks with bones. Fresh river fish preferred.
2 tomatoes chopped + 1 lemon juice/ ou tenga (2 tbsp).
Slit lengthwise. Heat from fresh phena chilies.
Different styles across Assam
Elephant apple (Dillenia indica) provides intense natural sourness. Seasonal summer delight.
Small fish whole with heads. Eaten with rice, bones soft.
Dried fermented fish for umami. Popular in Upper Assam.
From kitchen to table
Authentic recipe demonstration
Brahmaputra Valley - Jorhat, Dibrugarh, Guwahati