Proteins

Rohu (Rui)

A popular South Asian freshwater carp, cut into steaks and fried or curried in Bengali kitchens.

Rohu (rui) is a freshwater carp central to Bengali and broader South Asian cooking. It is typically cut crosswise into bone-in steaks, lightly fried, then simmered in mustard, turmeric, and onion-based gravies such as macher jhol. The flesh is soft and slightly sweet, though it carries fine bones.

Rohu (Labeo rohita) is one of the three Indian Major Carps and stands as a cornerstone of South Asian freshwater cuisine, particularly in Bengal where it is considered one of the five essential fish. Belonging to the Cyprinidae family, this species is native to the Indus River basin and is now cultivated extensively throughout India, Bangladesh, Pakistan, Nepal, Myanmar, and Sri Lanka. Its cultural significance runs deep—Rohu features prominently in Hindu festival foods, wedding feasts, and ritual offerings, and the fish commands premium pricing based on size and freshness.

The flesh offers a mild, sweet freshwater taste with firm, flaky white meat that holds together well during cooking, though cooks must navigate its characteristic numerous small Y-shaped intramuscular bones. Market-sized Rohu typically ranges from 1 to 15 kg, with wild specimens reaching 40 kg or more. The firm, coarse-grained texture makes it exceptionally suited to curries and frying, while the gelatinous cheek meat and rich belly fat are prized separately in Bengali preparations. As one of the most cultivated freshwater fish globally, Rohu provides approximately 15–20 g of protein per 100 g of raw flesh, with fat content varying by season and cut.

Measured in: piece
Storage: Fridge

Allergens

Fish

Types & varieties

Katli Rohu

Very fine, thin fillet cut; prized for delicate preparations like steamed fish or light poaching

Bengali Cut (Katal)

Cross-section steaks with backbone intact; the traditional cut for Machher Jhol and Kalia

Head Piece (Muro)

Cooked separately in Bengali cuisine; prized for Bhuna fish head and fish head curry; contains gelatinous cheek meat

Tail Piece

Thicker section near the caudal fin; leaner and less fatty, well-suited for frying

Selecting Fresh Rohu

Freshness is paramount. Check for bright, clear eyes (not sunken or cloudy) and bright red or pink gills (brown or slimy gills indicate spoilage). Press the flesh—fresh Rohu springs back and feels firm. The smell should be mild and freshwater-like; avoid fish with a strong ammonia odor or yellowed fins, which signal decomposition. Scales should adhere tightly to the skin.

Bright, clear eyes; avoid sunken or cloudy eyes
Bright red or pink gills; reject brown or slimy gills
Firm flesh that rebounds when pressed
Mild freshwater smell; no ammonia or strong fishy odor
Scales tightly adhered; avoid fish with loose or missing scales

Understanding Rohu's Bones

The numerous small Y-shaped bones throughout the flesh are characteristic of carp and do not indicate poor quality. This is simply the nature of the fish. Strategies for managing bones include: cutting into steaks concentrates bones in the central backbone area; for fillets, careful deboning with tweezers or a deboning knife removes most bones; traditional Bengali preparations often cook steaks whole so diners navigate bones deliberately rather than expecting boneless meat.

Steaks concentrate bones in the center backbone
Fillets require careful manual deboning
Bone content does not indicate quality
Traditional preparations expect diners to navigate bones
Deboning yields clean meat for fish cakes and balls

Common uses

Fried as steaks, fillets, or whole small fish—shallow-fried for crispy skin or deep-fried for fish friesCurried in coconut-turmeric gravies such as Rui Kalia and Machher JholSteamed or poached to showcase the mild flavor in Bhuna Mach or steamed fish cakesStuffed with spices and roasted in banana leaves in the classic Machher Paturi preparationSautéed or braised with aromatic spices in Rui Mach BhunaFish roe (spawn) fried as fritters or cooked in curryRohu head cooked in mustard-turmeric sauce—a delicacy in Bangladesh and Bengali cuisineFish balls and cakes made from carefully deboned fleshGrilled or tandoor-roasted with spice marinadesMixed into dal or vegetables to add protein to vegetarian dishes

Tips & pitfalls

Select fresh Rohu by checking bright clear eyes, bright red or pink gills, firm flesh that springs back, and a mild freshwater smell—reject fish with sunken eyes, brown slimy gills, or ammonia odor
Rohu's small Y-shaped bones are characteristic of carp, not a quality defect—manage them by cutting steaks or careful deboning; do not assume you have been sold a low-quality fish
For frying, score the flesh deeply before coating to allow heat penetration and prevent curling of the steaks
Marinate fish with turmeric and salt for 10–15 minutes before cooking in curries—this firms the flesh and helps it hold together in the gravy
Add fish to curry only after the gravy reaches a gentle simmer; overcook causes it to break apart—8–12 minutes is sufficient depending on cut size
The belly fat (pait) is a delicacy in Bengali cuisine for its richer flavor; cook it separately or reserve for specific preparations rather than discarding
Thaw frozen Rohu overnight in the refrigerator; never thaw at room temperature as this promotes bacterial growth
Rohu scales are large and easy to remove—scrape against the grain with a dull knife or spoon edge for clean scaling

Nutrition

124kcal

Energy

519 kJ · per 100 g

Where the calories come from

Protein 68%Carbs 0%Fat 32%

Protein

20g

40% DV

Carbs

0% DV

Fat

4.2g

5% DV

Fiber

0% DV

Sodium

60mg

3% DV

Notable micronutrients

Vitamin B12225% DV

Selenium66% DV

Niacin (B3)37% DV

Vitamin B624% DV

Phosphorus18% DV

Vitamin A13% DV

Source · USDA FoodData Central · approx. Fish, bluefish, raw

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In the shops

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Good to know

Scientific Name: Labeo rohita
Common Names: Rohu (Hindi/English), Rui (Bengali)
Family: Cyprinidae (Carp family)
Protein Content: 15–20 g per 100 g raw flesh
Fat Content: 2–5 g per 100 g; higher in belly flaps
Peak Season: Autumn through early spring (cooler water)
Typical Market Weight: 1–15 kg; up to 40+ kg wild
Dressed Yield: 45–50% from whole fish

Substitutes

Catla (Catla catla) — The other major Indian carp; nearly identical texture and mild flavor, often used interchangeably in Bengali dishes; slightly sweeter with more finely grained flesh
Mrigal (Cirrhinus mrigala) — Third major Indian carp; leaner than Rohu with softer texture; acceptable substitute in curries and fried preparations
Grass Carp (Ctenopharyngodon idella) — Not native but widely available; firmer, more fibrous flesh; works for frying and currying but lacks the characteristic sweet flavor
Common Carp (Cyprinus carpio) — Introduced species with stronger, muddier flavor; acceptable in cooked preparations but not preferred for frying
Asian Sea Bass (Barramundi) — Closest saltwater alternative for firm white fish; lacks the freshwater carp character but suitable for curries and grilling when carp is unavailable