Northeast Indian · Main course
Assamese Masor Tenga (Tangy Fish Curry)
Masor tenga is an Assamese fish curry from Assam, a light, sour-tasting broth built around a freshwater fish and soured with ingredients such as tomato, lemon or the local elephant apple (outenga). NNWA highlights it as a minimally oiled, tomato- or citrus-soured curry typical of Northeast Indian home cooking's preference for light, tangy broths over heavy gravies.
- Prep
- 15 min
- Cook
- 25 min
- Total time
- 40 min
- Servings
- 4
- High-protein
- Heart-healthy
Ingredients
- 500g rohu or any freshwater fish, cut into pieces
- 1/2 tsp turmeric powder, for marinating the fish
- Salt to taste
- 2 tbsp mustard oil
- 1/2 tsp fenugreek seeds
- 1 tsp panch phoron or a mix of mustard and cumin seeds
- 1 medium tomato, chopped
- 2-3 pieces elephant apple (outenga), or extra tomato if unavailable
- 1 green chilli, slit
- 1/2 tsp turmeric powder, for the gravy
- Water, as needed
- Fresh coriander leaves, chopped
NNWA health note
Masor tenga uses very little oil compared with most Indian fish curries, relying instead on natural souring agents for flavour, which keeps the dish lower in added fat. The freshwater fish provides lean protein, and the light broth format means the dish can be a substantial protein source without a heavy calorie load.
Method
- 01
Rub the fish pieces with turmeric and salt, and leave to rest for ten minutes.
- 02
Heat mustard oil in a pan and lightly shallow-fry the fish pieces on both sides, then set aside.
- 03
In the same oil, temper with fenugreek seeds and panch phoron until they crackle.
- 04
Add the chopped tomato and elephant apple, or extra tomato, and cook until they soften and break down.
- 05
Add turmeric and a little water, and simmer until the souring agents have released their tang into the broth.
- 06
Season with salt and add the slit green chilli.
- 07
Slide in the fried fish pieces and simmer gently for five to seven minutes without vigorous stirring.
- 08
Garnish with fresh coriander and serve hot with steamed rice.
Masor tenga is one of the defining dishes of Assamese cuisine, a sour fish curry that reflects the broader Northeast Indian preference for tangy, lightly spiced broths over the richer, spice-heavy gravies common elsewhere in India. The souring agent varies by household and season, with tomato used most commonly, and outenga (elephant apple), a fruit native to the region, prized when in season for its distinctive tartness.
NNWA has included masor tenga because Northeast Indian cuisine is underrepresented in most general Indian cooking references, and this dish is a clear, authentic entry point into its flavour logic: minimal oil, minimal spice, and sourness rather than chilli heat as the dominant note. It gives students a genuine regional comparison to the richer fish curries found in eastern and southern India.
The fish is only briefly fried before it joins the broth, and the souring ingredients need enough time to properly break down and release their tang before the fish goes in, or the curry will taste flat rather than balanced. A common mistake is over-spicing the tempering; masor tenga is meant to stay light, and even panch phoron is used sparingly compared with its role in Bengali cooking.
Where elephant apple is unavailable outside Assam, ripe tomato alone, sometimes with a squeeze of lemon juice, is the most common and acceptable substitute, and many households already use this version year-round when the fruit is out of season. Other souring options used regionally include raw mango or a local citrus called thekera, both giving a similar tangy character.
Learn the science
Cardiovascular (CVD) Nutrition
This dish's nutrition reasoning is taught in full in this NNWA course.
What people ask about Assamese Masor Tenga (Tangy Fish Curry)
What gives masor tenga its sour taste?
Traditionally tomato, and often a regional fruit called elephant apple (outenga), which grows in Assam and gives the curry its distinctive tang. Lemon or raw mango are also used as substitutes when the fruit is unavailable.
Is masor tenga a spicy curry?
No, it is a mild curry where sourness rather than chilli heat is the dominant flavour, using only a modest amount of green chilli and no dry red chilli powder.
Which fish is traditionally used for masor tenga?
Freshwater fish such as rohu are the most common choice, though other locally available freshwater fish are used interchangeably depending on the region and season.
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