Bengal Sultanate: The Kingdom That United Bengal, 1352–1576

For more than two centuries, from the 1350s to 1576, Bengal was ruled as an independent sultanate — a single kingdom that stretched across the Ganges-Brahmaputra delta and, at its height, reached into Assam, Bihar, Orissa and Arakan. It was the first state to unite the whole of Bengal under one ruler, and the first whose kings called themselves, simply, the sultans of Bengal. Its dynasties — Ilyas Shahi, the house of Raja Ganesha, the Habshi palace sultans, the Hussain Shahis and finally the Afghan Karranis — minted one of the most stable silver currencies in Asia, traded from Chittagong to Malacca and China, and presided over the formative age of the Bengali language. When it fell to the Mughals in 1576, Bengal passed into the imperial order described in the story of Subah Bengal — but the idea of Bengal as one country, with one people, was the sultanate's creation.

A Delta in Three Pieces

Bengal was not born united. After a century of uneasy government from Delhi, the Delhi Sultan Ghiyath al-Din Tughluq reorganised the province in 1325 into three administrations, based at Lakhnauti (also called Gauda, in the north), Satgaon (in the south-west, near the Hooghly) and Sonargaon (in the east, near modern Dhaka). Distance and river geography did the rest. By 1338 each governorship had slipped into the hands of a separatist sultan: Fakhruddin Mubarak Shah at Sonargaon, Alauddin Ali Shah at Lakhnauti, and at Satgaon an ambitious officer of Central Asian origin named Shamsuddin Ilyas Shah. Bengal's three rulers raided and intrigued against one another, and Delhi was too far away to hold them. Unification, when it came, came from within Bengal itself.

Ilyas Shah and the Making of Bangalah

Ilyas Shah struck first. In 1342 he seized Lakhnauti, defeated and displaced Alauddin Ali Shah, and assumed the full royal title Sultan Shamsuddin Ilyas Shah. A decade of campaigning followed — into Tirhut in 1344, and around 1350 a startling raid across the Terai into Nepal, from which he returned with great booty. In 1352 he conquered Sonargaon, defeating Ikhtiyaruddin Ghazi Shah, and became master of the whole of Bengal. Two dates therefore attach to the sultanate's birth: 1342, when Ilyas Shah took the throne of Lakhnauti, and 1352, when the unification was complete.

The achievement was more than military. The contemporary chronicler Shams-i-Siraj Afif styled Ilyas Shah Shah-i-Bangalah — King of Bengal — and Banglapedia's verdict is that he gave the united territory the name Bangalah and its people the name Bangali. He fixed his capital at Pandua, also called Firozabad, north of the old city of Lakhnauti, and he defended his kingdom against Delhi: when Sultan Firuz Shah Tughluq invaded in 1353–54, Ilyas Shah held out in the island fortress of Ekdala until the invader withdrew, and a second Delhi expedition in 1359 was likewise turned back by his son. Ilyas Shah died in 1358, founder of the Ilyas Shahi dynasty, which, with one interruption, would rule Bengal for nearly 150 years.

Sikandar Shah and Ghiyasuddin Azam Shah

His son Sikandar Shah (reigned 1358–1390) gave the young kingdom its monument. In the 1370s he raised the Adina Mosque at Pandua — at some 155 by 88 metres the largest mosque in the Indian subcontinent, its courtyard plan recalling the great Umayyad Mosque of Damascus and announcing that Bengal's sultan aspired to imperial rank. Sikandar Shah is buried inside it. His reign was long and prosperous, but it ended violently: in 1390 he was killed at Goalpara, near Pandua, fighting his own rebellious son.

That son, Ghiyasuddin Azam Shah (reigned 1390–1410), was the most cultivated of the early sultans. From his courts at Pandua and Sonargaon he corresponded with Hafez of Shiraz, the most famous Persian poet of the age: the sultan sent an unfinished couplet, and Hafez completed it and sent a ghazal in return. Azam Shah endowed madrasas in Mecca and Medina, patronised the poet Shah Muhammad Sagir, whose romance Yusuf-Zulekha is a landmark of early Bengali Muslim literature, and opened the diplomatic exchange with Ming China that would mark the next three decades. His death in 1410 or 1411, however, exposed the dynasty's weakness: two short-lived successors were murdered in quick succession, and power drained away from the throne.

The Ganesha Interruption

Into the vacuum stepped Raja Ganesha, a powerful Hindu landlord from Bhaturia in Dinajpur who had dominated the court since about 1410. In 1414 he dethroned the last of Azam Shah's line and took the throne himself — the only Hindu king of the Bengal Sultanate. His rule provoked the great Sufi Nur Qutb Alam to summon help from Sultan Ibrahim Sharqi of Jaunpur, and facing invasion Ganesha accepted the saint's terms: his young son Jadu converted to Islam and was placed on the throne in 1415 as Jalaluddin Muhammad Shah. Ganesha seized power back within a year and ruled until about 1418, but after his death Jalaluddin reigned in his own right until 1432.

Jalaluddin Muhammad Shah proved one of the sultanate's ablest kings. He repaired the damage of the civil struggle, carried Bengal's influence abroad — Bengali help restored the exiled king of Arakan to his throne in 1429–30 — and, crucially, drew Bengali itself into government: under him Bengali stood alongside Persian as a language of court and administration. When his own son's brief reign collapsed in disorder, the throne passed in the 1430s to Nasiruddin Mahmud Shah, a descendant of Ilyas Shah. The Ilyas Shahi dynasty was restored.

The Restored Ilyas Shahis and the Move to Gaur

The restored dynasty gave Bengal two generations of stable rule. Mahmud Shah (reigned to 1459) pushed the frontier south-west: his commander Khan Jahan Ali colonised the Jessore–Bagerhat country and founded Khalifatabad, modern Bagerhat, as a mint town. Around 1450 Mahmud Shah also transferred the capital from Pandua back to the older city of Gaur — earlier called Lakhnauti — probably as the shifting Ganges made one site unhealthy and the other rise. Gaur would remain the capital for 115 years.

His son Rukunuddin Barbak Shah (reigned 1459–1474) presided over a notably bilingual court. He honoured the poet Maladhar Basu with the title Gunaraj Khan; Maladhar's Srikrishna Vijaya, composed in the 1470s, is the earliest dated Bengali narrative poem. Muslim and Hindu scholars alike — among them Krittibas Ojha, whose Bengali Ramayana tradition attaches to this milieu — found favour at Gaur. Yet Barbak Shah also planted a time bomb: he recruited Habshi (Abyssinian) soldiers and palace men in large numbers — the chronicler Ferishta says 8,000 — and within a few years of his death they would seize the throne itself. His later successors could not hold the state together, and in 1487 the last Ilyas Shahi sultan, Jalaluddin Fateh Shah, was murdered by his own Habshi palace commander.

The Habshi Interlude, 1487–1494

The murderer took the throne as Shahzada Barbak — and was himself killed within months by Malik Andil, the Habshi commander of the palace guard, who reigned as Saifuddin Firuz Shah (1487–1489). A child sultan, Mahmud Shah II, followed and was killed in turn; then came Shamsuddin Muzaffar Shah, whose oppressive rule ended in 1494 when his own wazir, Sayyid Husain, led the revolt that besieged and killed him in the citadel of Gaur. Four sultans of African origin had ruled Bengal in seven years — not a dynasty, historians caution, but a sequence of palace soldiers raised by the same military slavery that Barbak Shah had expanded. The interlude is not without its monuments: the Firoz Minar, a five-storeyed brick tower at Gaur modelled on a victory pillar, is attributed to Firuz Shah. But the episode's real significance is what it ended — and what it made possible.

The Hussain Shahi Golden Age

Sayyid Husain took the throne in 1494 as Alauddin Husain Shah, founding the Hussain Shahi dynasty, and his reign — with that of his son Nusrat Shah — is remembered as the golden age of the Bengal Sultanate. Husain Shah (reigned 1494–1519) extended the kingdom to its greatest breadth: Kamrup-Kamata in the north-east was overrun, Chittagong was annexed in campaigns between 1512 and 1516, expeditions reached toward Orissa and Tripura, and an attack by Sikandar Lodi of Delhi was repelled. Later generations called him the Akbar of Bengal.

The peace he secured was spent, famously, on Bengali letters. It was under his governor of Chittagong, Paragal Khan, that the poet Kabindra Parameshvar produced the Pandabbijay, a Bengali rendering of the Mahabharata; Paragal's son Chhuti Khan patronised a second rendering by Shrikar Nandi. (The translation is often loosely credited to the sultans themselves — in fact it was their Chittagong governors who commissioned it.) Bijay Gupta composed his Manasamangal in the same reign, and Husain Shah's court employed Hindus and Muslims across its administration in a manner contemporaries praised. His son Nasiruddin Nusrat Shah (reigned 1519–1532) completed Gaur's largest mosque, sheltered Afghan nobles fleeing Babur's advance, and — after defeat at the Ghaghra in 1529 — bought Bengal's safety with a treaty with the Mughal emperor. His assassination in 1532 opened the dynasty's decline; his brother Ghiyasuddin Mahmud Shah, the last of the line, inherited a kingdom circled by enemies.

Trade, Ports and the Silver Tanka

The sultanate's prosperity rested on water. Its exports — above all cotton textiles, with rice, sugar and silk — went out through Satgaon and Chittagong to Malacca, Ceylon, the Maldives and beyond, while Sonargaon, the eastern river port near Dhaka, shipped the fine cloth of the Meghna country. Travellers were struck by the cheapness of it all: Ibn Battuta, visiting in 1345–46, called Bengal a "hell full of bounties" — a land where provisions were so abundant and inexpensive that the phrase read as both complaint and compliment.

Money tells the same story. Bengal had no silver mines, yet for over two centuries its sultans minted a heavy silver tanka of about 10.8 grams and consistently high purity — bullion that could only have been earned through trade, arriving overland from Yunnan and Burma and by sea. Tankas served long-distance and royal transactions; cowrie shells, imported from the Maldives, served the bazaar. The network of mint towns — Gaur, Pandua, Sonargaon, Satgaon, Khalifatabad and others — mapped the state's real geography.

Foreign courts took notice. In the early fifteenth century Bengal and Ming China exchanged embassies repeatedly, and in September 1414 Bengali envoys presented the Yongle Emperor with a giraffe — an animal that had reached Bengal from Malindi, on the East African coast, through the Indian Ocean trade, and which the Chinese court hailed as the auspicious qilin. In about 1432 a detached squadron of the last Chinese treasure voyage, carrying the interpreter Ma Huan, landed at Chittagong and travelled up to Sonargaon and the capital; Ma Huan's account of Bengal — its tanka currency, its markets, its twice-harvested rice — remains a prime eyewitness source. Whether Admiral Zheng He himself ever came is unproven: Bengal does not appear on his commemorative lists, and the documented visit was his subordinate's. A century later the visitors were European: Portuguese ships reached Chittagong in 1517–18, and in 1528 the sultan licensed Portuguese factories and customs houses there; in the 1530s Mahmud Shah extended their privileges to Satgaon in return for military help.

Architecture of the Sultanate

The sultans built in brick, Bengal's own material, and evolved a recognisably regional style: massive walls, curved "bowed" cornices echoing the bamboo roofs of Bengali huts, terracotta ornament, and stone used sparingly for pillars and facings. The Adina Mosque at Pandua was the imperial statement of the early kingdom. At Pandua also stands the Eklakhi Mausoleum (c. 1425), the single-domed square tomb that tradition assigns to Jalaluddin Muhammad Shah and his family — its name said, by that same tradition, to record a cost of one lakh of tankas. At Gaur the surviving monuments span the whole later sultanate: the Firoz Minar, the great gateway of the Dakhil Darwaza, the stone-clad Chota Sona Masjid of Husain Shah's reign, and the Baro Shona Masjid, completed by Nusrat Shah in 1526 and the largest mosque left standing in the old capital. Far to the south, Khan Jahan Ali's brick mosques around Bagerhat carried the same style to the edge of the Sundarbans.

Sher Shah, the Afghans and the Fall

The end came from the north-west. Sher Khan Suri, the Afghan strongman of Bihar, first descended on Bengal in 1535 and forced Sultan Mahmud Shah to surrender the country west of Rajmahal and promise a tribute of 900,000 tankas. When the tribute failed and his collector was killed, Sher Shah returned and in 1538 toppled the Hussain Shahi throne. The Mughal emperor Humayun occupied Gaur — renaming it Jannatabad, "abode of paradise" — but Sher Shah destroyed his army at Chausa in 1539, and for a generation Bengal was governed from Delhi by the Sur sultans and their deputies.

Yet Bengal's independence was not finished. In the 1550s, as the Sur empire fragmented, local rulers restored the sultanate, and from 1564 its last dynasty, the Afghan Karranis, held the throne. Sulaiman Khan Karrani (reigned 1565–1572) moved the capital from plague-threatened Gaur to nearby Tanda and conquered Orissa. His son Daud Khan Karrani refused the supremacy of the Mughal emperor Akbar, striking coins and having the khutba read in his own name. Defeated at Tukaroi in March 1575, Daud bought time with the Treaty of Katak, then fought again. On 12 July 1576, at Rajmahal, the Mughal army under Khan Jahan broke his forces; Daud's horse stuck fast in the mud, and the captured sultan was executed on the field. After 224 years, the Bengal Sultanate was over, and Bengal entered the Mughal Empire as the Subah Bengal of the following age.

Legacy

The sultanate's deepest legacy is an idea: that the delta of the Ganges, Brahmaputra and Meghna is one country — Bangalah — and its people one people, the Bangali. Ilyas Shah's court minted that idea along with its tankas, and every later Bengali state has inherited it. The period also fixed the position of the Bengali language: patronised at court from Jalaluddin Muhammad Shah onward, carried by translation and by the mangalkavya poets, Bengali emerged from these two centuries as a literary language of the first rank, while a distinctly Bengali Islam — of Sufi shrines, mint towns and reclaimed forest frontiers — took the shape it still largely keeps. Even the money survives in name: the silver tanka of the sultans is the ancestor of the taka in every pocket in Bangladesh today.