The Sahib’s Obsession and the Hermit’s Whiskers: The Tale of Topse Machh and Fragrant Lebu Bhaat
In these times of severe fish scarcity, indulging in an elaborate discourse on fish feels almost like a cruel jest to a Bengali. Yet, one may draw consolation from history: our culinary liaison with the Topse machh (তপস্বী মৎস্য) is not ancient. Strictly speaking, it is an urban Calcuttan discovery—modern, colonial, and unmistakably cosmopolitan.
In the hoary gastronomic canon of Bengal, Topse never found a seat on the traditional dining mat. The medieval feast detailed in the Sadhuktikarnamrita celebrated piping-hot rice laced with pure cow’s ghee served on fresh banana leaves, concluded with thickened milk and small sweet-water carps like mourola. Even when Emperor Akbar’s court historian Abul Fazl recorded the distinct fish-eating nature of Bengalis, or when medieval poets composed verse after verse cataloging the myriad catches of river, swamp, and pond, Topse remained conspicuously absent.
The Company's Delicacy and the Whiskered Hermit
The true ascension of Topse came with the English East India Company. It was the quintessential fish of colonial Calcutta. The British dubbed it the "Mango-fish" (Polynemus paradiseus), partly because its prime run up the Hooghly coincided with the summer ripening of mangoes, and partly because of its golden hue and delicate flesh. Bengalis saw in its trailing filaments the long beard of a meditating ascetic and named it Tapaswi or Topse.
"এমন অমৃত ফল ফলিয়াছে জলে।
সাহেবরা সুখে তাই ম্যাঙ্গো ফিশ বলে॥"
— ঈশ্বর গুপ্ত (Ishwar Gupta), তপসে মাছের স্তব
The 19th-century satirist Ishwar Gupta showered ecstatic praises upon this roe-laden creature, playfully warning that anyone whose tongue tasted it once would lose all appetite for anything else on earth. The British were equally enchanted. In the Bengal Gazette of February 24, 1781, James Augustus Hicky advertised a formal assembly of the Board of Trustees at the New Tavern specifically convened to feast upon the season's mango fish.
From Warren Hastings’ Budgerows to Uluberia Hauls
In the leisurely days of Warren Hastings, working hours were wrapped up by midday. After early dining, the English elite retired behind cooling reed screens (tatties) and swinging punkahs. Come late afternoon, refreshed Calcutta society flocked to the river:
"Instead of returning from office weary and exhausted, they woke up to fresh life and spirits, ready for any gaiety that was going on—riding, driving, walking, or paddling about in budgerows angling for mango-fish."
When the monsoon freshets arrived, feverish competition erupted along the riverbanks. Wealthy Europeans chartered river cruisers stocked with rum and provisions, heading downstream past Diamond Harbour, Fulta, and Fort Gloster in search of the best catches. Walter Hamilton wrote in 1820 that the Hooghly mango fish was considered "the best and highest flavoured fish not only in Bengal, but in the whole world." It was deemed worth a sea voyage of fifteen thousand miles just to taste it.
The stretch of the Hooghly between Diamond Harbour and Uluberia was the golden nursery of the species. Uluberia served as the bustling rail and river depot sending fresh hauls to Calcutta's markets, where the fish was sold not by weight, but by count—historically around four rupees per hundred.
From "Baked Chilwas" to Gymkhana London
The Anglo-Indian culinary repertoire embraced the fish passionately, developing baked and smoked adaptations alongside native shallow fries:
"Take the small mango fish. Spread a pie-dish with butter and strew well with bread-crumbs, minced parsley, onions, pepper and salt. Lay the fish on this in a row. Moisten with a mixture of equal parts Harvey sauce, anchovy, and white wine. Repeat more butter seasoning and crumbs, moistening with melted butter last of all. Bake for quarter of an hour. Excellent for breakfast."
This colonial affinity endures across eras and geographies. At the Michelin-starred Gymkhana in London’s Mayfair (Piccadilly Circus / Green Park), this heritage is reframed through a contemporary lens: an inventive kebab section showcases peanut-crusted mango fish accompanied by yoghurt-dressed cucumber and carrot pachadi, balancing period nostalgia with modern culinary refinement.
The Pairing: Fragrant Lebu Bhaat and Crispy Topshe Fry
While colonial kitchens favored baking and butter sauces, Ishwar Gupta and generations of Bengalis knew that the soul of Topse belongs in smoking-hot mustard oil. Paired with aromatic citrus rice, it creates a pristine, memorable feast.
1. Narkel-Ghee Lebu Bhaat (Lemon and Coconut Ghee Rice)
A comforting, fragrant rice preparation gently scented with crushed Gondhoraj leaves, sweet coconut flakes, and pure desi ghee.
Ingredients:- Fine fragrant boiled rice (Gobindobhog or Dehradun Basmati): 2 cups (cooked and cooled to warm)
- Gondhoraj lemon juice: 2 tablespoons
- Fresh Gondhoraj leaves: 3–4 (lightly bruised to release essential oils)
- Freshly grated coconut: ½ cup
- Pure cow ghee (গাওয়া ঘি): 2 tablespoons
- Green chillies: 2–3 (slit lengthwise)
- Salt and sugar: To taste
- Spread the warm cooked rice on a wide platter so the grains remain distinct and fluffy.
- Drizzle warm ghee over the rice, followed by freshly squeezed Gondhoraj juice, sugar, and salt.
- Gently toss in the grated coconut and slit green chillies.
- Tuck the bruised Gondhoraj leaves deep into the warm mound, cover with a lid for 10 minutes to allow the citrus oils to infuse, and serve warm.
2. Crispy Topshe Machh Bhaja (Batter-Fried Mango Fish)
The quintessential Calcutta delicacy: sweet-fleshed, whisker-tailed mango fish marinated in pungent aromatics and deep-fried in golden mustard oil.
Ingredients:- Fresh Topse fish (gutted, cleaned, keeping the tail and whiskers intact): 6 pieces
- Onion paste: 1 tablespoon
- Ginger-garlic paste: 1 teaspoon
- Green chilli paste: 1 teaspoon
- Turmeric and red chilli powder: ½ teaspoon each
- Lemon juice or vinegar: 1 teaspoon
- Besan (gram flour) or cornstarch and rice flour mix: 3 tablespoons (for a crisp crust)
- Mustard oil: For deep frying
- Salt: To taste
- Pat the fish dry thoroughly. Make a shallow slit along the spine to help the flesh cook through.
- Marinate the fish with onion paste, ginger-garlic paste, green chilli, turmeric, chilli powder, salt, and lemon juice for 20 minutes.
- Dust or dip in a seasoned crisp batter of gram flour and rice flour (or egg and breadcrumbs for an Anglo-Indian cutlet style).
- Heat mustard oil in a kadai until smoking hot, then reduce to medium. Slide the fish in gently and fry until golden brown and crisp on both sides.
- Drain on absorbent paper and serve piping hot alongside the fragrant Lebu Bhaat.
একবার রসনায় যে পেয়েছে তার
আর কিছু মুখে নাহি ভালো লাগে তার।
না করে উদরে যেই তোমায় গ্রহণ
বৃথায় জীবন তার বৃথায় জীবন।
“Once the tongue tastes it,
Nothing else tastes good to the mouth anymore.
If one does not accept this gift of yours into the belly,
Vain is their life, utterly in vain is their existence.”
Frequently Asked Questions
Why is Topse called "Mango Fish"?
British colonial settlers in Calcutta named it Mango Fish because its arrival in large shoals along the Hooghly River coincided with the mango season (April to June), and because of its delicate golden-yellow color and subtle sweet flavor.
What does the name "Tapaswi" or "Topse" mean?
"Tapaswi" translates to an ascetic or hermit in meditation. Bengalis named the fish Topse because its elongated trailing barbels or filaments strongly resemble the long, flowing beard of a sage.
Where along the Hooghly was Topse caught in abundance?
The stretch between Uluberia and Diamond Harbour was historically considered the prime nursery for Topse. Uluberia acted as the principal center for trading and transporting the catch by river boat and railway to Calcutta markets.
Can Lebu Bhaat be prepared with ordinary lemons instead of Gondhoraj?
While regular limes can provide acidity, authentic Bengali Lebu Bhaat relies on the distinct citrus aroma of Gondhoraj (Rangpur lime/King Lemon) peel and leaves. Kaffir lime leaves or sweet lime zest can act as alternatives if Gondhoraj is unavailable.