The Partition of Bengal, 1947: The Radcliffe Line and the Making of East Bengal

In August 1947 Bengal was divided for the second time in forty-two years. The first partition, in 1905, had been imposed by a viceroy and undone by protest within six years. The second was voted through in Bengal's own legislature, drawn on the map by an English judge who had never set foot in India, and justified by the arithmetic of the two-nation theory: Muslim-majority districts to Pakistan, Hindu-majority districts to India. It moved millions across a border that had not existed a decade before, cut Bengal's economy in half, and set the east on a road that led, within a generation, to a second liberation — from Pakistan itself. Yet it was neither inevitable nor uncontested: as late as May 1947, Bengal's own leaders were still trying to keep the province whole.

The First Partition: 1905–1911

The rehearsal came in 1905. The Bengal Presidency — Bengal with Bihar and Orissa — held nearly 78 million people, and Viceroy Lord Curzon argued that it was too large to administer. His remedy, effective from 16 October 1905, split it in two: a western Bengal still ruled from Calcutta, and a new province of Eastern Bengal and Assam — Muslim-majority, capital at Dhaka, port at Chittagong. The administrative case was genuine, but the political design was plain: Bengali politicians would be divided by religion, and eastern Muslims, whom Curzon courted in person, would have a province of their own.

Bengal answered with the Swadeshi movement — boycott of British goods, indigenous industry, national schools — the first mass nationalism of modern India. It also answered institutionally: in December 1906 the All-India Muslim League was founded at Dhaka, to defend Muslim interests against the day the settlement might be reversed. That day came on 12 December 1911, when George V announced at the Delhi Durbar that the partition was annulled and the imperial capital would move from Calcutta to Delhi. Bengal was reunited. But Hindus had learned that agitation could undo a settlement, and Muslims that their gains could be withdrawn — and that separate political organisation, armed after 1909 with separate electorates, was the surest defence. The map of 1947 would follow almost the same lines as the map of 1905.

Bengal's Separate Political Road

Bengal's politics between the wars marched to its own drum. Separate electorates meant that even leaders who preached unity had to win communal constituencies; yet Bengal also sustained India's most durable cross-communal politics. Under provincial autonomy, the 1937 election made Congress the largest party, but its coalition talks with Fazlul Huq's Krishak Praja Party — the peasant party built on Bengal's tenants' movement — collapsed. Huq, Sher-e-Bangla, the Tiger of Bengal, formed a coalition with the Muslim League instead, governing on tenancy reform and debt relief that spoke to Hindu and Muslim peasants alike.

The paradoxes deepened. In 1940 it was Huq who moved the League's Lahore Resolution, the first formal demand for separate Muslim states. A year later, breaking with Jinnah, he rebuilt his ministry as a Progressive Coalition in partnership with Syama Prasad Mukherjee's Hindu Mahasabha — the same Mukherjee who would soon demand Bengal's partition. Forced out by the governor in March 1943, Huq gave way to a League ministry under Khawaja Nazimuddin, which governed through the famine of 1943, in which an estimated two to three million Bengalis died. After a spell of governor's rule, the election of 1946 swept the board: the League overwhelmed every rival in the Muslim seats, the peasant party collapsed, and Huseyn Shaheed Suhrawardy became Bengal's last prime minister in April 1946. Henceforth the province's fate would be settled between the League, the Congress high command and the British.

1946: Violence and the End of Compromise

The last scheme to avoid partition was the Cabinet Mission Plan of May 1946 — a loose federation grouping Bengal with Assam, with safeguards for both communities and not a district divided. The League accepted, then withdrew, and resolved on "direct action" for Pakistan.

Direct Action Day, 16 August 1946, was the point of no return. Suhrawardy's ministry declared a public holiday in Calcutta; the League's great meeting dissolved into four days of killing, remembered as the Great Calcutta Killing. Nobody counted reliably: official figures ran into the hundreds, while the estimates historians work with put the dead between about 4,000 and 10,000, and more than 100,000 people were left homeless. In October the violence moved east. In Noakhali and Tippera, mobs attacked the Hindu minority — killing, abduction, forced conversion, arson. The official toll was a few hundred dead; contemporary claims ran to several thousand; the truth was never established, and Gandhi's walking peace mission through the district could not mend what had broken. Bihar answered with massacres of Muslims weeks later.

The political consequence was decisive. Bengal's Hindu middle class, which had fought partition in 1905, now demanded a partition of its own — a West Bengal safe inside India — and the Mahasabha's campaign found a province-wide hearing. After 1946, compromise had no constituency left.

The United Bengal That Never Was

One attempt was still made. On 27 April 1947 Suhrawardy told a Delhi press conference that Bengal should become "an independent, sovereign, undivided Bengal in a divided India". His partners were an unlikely pair: Abul Hashim, the Bengal League's left-wing secretary, and Sarat Chandra Bose, elder brother of Subhas Chandra Bose. Through May they drafted a Free State of Bengal — joint electorates with seats reserved by population, a coalition ministry, a constituent process of Bengal's own. The argument was Bengali before it was communal: one language, one economy, one culture. In Pakistan ruled from the west, Hashim warned, Bengali Muslims would be little more than "peons under Urdu-speaking judges and magistrates".

For a few weeks the idea lived. Jinnah told Mountbatten he had no objection — "What is the use of Bengal without Calcutta? They had much better remain united and independent" — though historians judge his assent cautious and ambivalent. Gandhi listened sympathetically. Mountbatten let the option stand in his early-May drafts, provided Bengal's leaders could agree among themselves. They could not. The Congress high command — Nehru, Patel and president Kripalani — rejected the scheme outright, and the Bengal Congress would not defy them; the Mahasabha was campaigning for partition; Calcutta's business houses distrusted the plan's socialist sponsors; and the League's central leadership disowned it within the month. In Joya Chatterji's verdict, neither Hashim could carry his own League nor Bose his own Congress. On 3 June, the two-dominion plan buried the third.

The 3 June Plan and the Sylhet Referendum

Mountbatten, viceroy from March 1947, had advanced the British departure from June 1948 to August 1947. The plan published on 3 June, agreed the previous day by the Congress, League and Sikh leaders, set the machinery: the assemblies of Bengal and Punjab would sit in two parts, by Hindu-majority and Muslim-majority districts; a majority for partition in either part would divide the province; referendums would settle Sylhet and the North-West Frontier Province; boundary commissions would draw the lines.

On 20 June 1947 the Bengal Legislative Assembly voted. In joint session it decided by 126 votes to 90 that a united Bengal should join Pakistan's constituent assembly. The members from the Muslim-majority east then voted 106 to 35 against partition. The members from the Hindu-majority west voted 58 to 21 for it. Under the plan's rule, the western vote sufficed: Bengal would be divided.

Sylhet, Assam's Bengali-speaking district, held its referendum on 6 and 7 July. By 239,619 votes to 184,041 — a majority of 55,578 — it chose East Bengal and Pakistan. The Indian Independence Act of 18 July then fixed the transfer of power: Pakistan on 14 August, India on 15 August 1947. Only the line itself remained to be drawn.

The Radcliffe Line

The drawing fell to Sir Cyril Radcliffe, a distinguished London barrister who had never visited India. He chaired both the Bengal and Punjab commissions, arrived in Delhi on 8 July 1947, and had barely five weeks. In the Bengal commission his four Indian colleagues — two Hindu judges, two Muslim judges — deadlocked on every major question, so the award was in effect one man's. His instructions were to follow contiguous Muslim and non-Muslim majorities, taking "other factors" into account. The award was signed on 12 August and published only on 17 August, after independence — leaving border districts to celebrate freedom unsure which country they were in.

The province was cut nearly in two: East Bengal emerged with about 39.1 million people, of whom 11.4 million were Hindus; West Bengal with about 21.2 million, of whom some 5.3 million were Muslims. The arguments began at the top of the map. Sylhet had voted for Pakistan as a district, and Karimganj had voted narrowly the same way, yet three and a half of Karimganj's thanas went to India, keeping Assam connected to Cachar and Tripura. The Chittagong Hill Tracts — about 97 per cent non-Muslim, largely Buddhist, an "excluded area" that had never sent a member to Bengal's assembly — went to Pakistan. Radcliffe's own note gives the reasoning: the tracts could hardly be "assigned to a State different from that which controlled the district of Chittagong itself", the port and rivers into which the hills drained. Chakma leaders had petitioned Delhi for India; the Indian flag raised at Rangamati on 15 August was replaced by Pakistan's six days later, and 17 August is still observed by Chakmas as a day of mourning.

Further south, the award struck balances. Khulna, shared almost evenly between the communities, went to East Bengal; Muslim-majority Murshidabad went whole to India, on the stated ground that the Bhagirathi–Hooghly river system was the life of Calcutta's port. Malda was split. Historians have long suspected a Khulna-for-Murshidabad exchange; the document itself speaks only of rivers, contiguity and ports. What is certain is that whole districts awoke on 17 August in countries their majorities had not chosen.

Two Bengals: Migration and Its Long Waves

Bengal's partition, unlike Punjab's, was not a single exchange of populations. East Bengal entered Pakistan with Dhaka as its capital — the city's second such life, after 1905 — under chief minister Khawaja Nazimuddin; it was renamed East Pakistan in 1955. West Bengal entered India under premier Prafulla Chandra Ghosh. The people moved slowly, and kept moving for twenty-four years.

The first wave followed the killings of 1946; the second and largest of the early years followed the riots of 1949–50 in Khulna, Dhaka and Barisal. India's 1951 census counted 2,099,000 refugees from East Bengal in West Bengal alone, and found that more than a quarter of Calcutta's population were refugees from the east. The Nehru–Liaquat Pact of April 1950 promised minorities security and restored property, and for a time the traffic slowed; but from October 1952 passports were demanded at the border, and each later crisis — the riots of 1964 after the Hazratbal relic theft, the 1965 war and Pakistan's Enemy Property laws, which stripped Hindu families of land — pushed more people west. Scholarly estimates of the total Hindu migration of 1947–71 range from about 4.1 to 5.8 million, perhaps more; perhaps a million or so Muslims moved the other way. East Bengal's Hindu share fell from about 28 per cent of the population in 1941 to about 18.5 per cent in 1961.

In Calcutta, the refugees famously housed themselves. Beyond the government camps stood the squatter colonies they seized and built by their own labour — 149 enumerated by 1952 — of which Bijoygarh became the emblematic case. Rehabilitation in Bengal was always thinner than in Punjab, where vacated Muslim property could be redistributed to the newcomers; no equivalent fund existed in the east, and the colonies hardened into a permanent, politicised landscape. The movement's final and greatest wave came in 1971, when some ten million people fled the Pakistan army into India — most of them going home, that time, to a new country of their own.

Legacy: The Line That Still Runs Through Bengal

The economic wound was immediate. The line gave East Bengal more than three-quarters of Bengal's jute-growing land and not a single jute mill; all the mills — 106 or more — stood along the Hooghly and exported through Calcutta. When Pakistan refused to devalue with sterling in 1949, the two halves slid into a trade war over the crop both needed. Each then rebuilt against the other: Adamjee's mill rose at Narayanganj in 1951, the largest jute mill in the world, while India pushed jute into West Bengal's paddy fields.

Politically, 1947 contained its own undoing. East Bengal had been assigned to Pakistan by religion, but it was governed from more than 1,600 kilometres away, in a state whose rulers proposed Urdu — the mother tongue of almost no Bengali — as the sole state language. The answer began on 21 February 1952, when Dhaka's students were shot defending Bengali. The day the world now keeps as International Mother Language Day opened the sequence — language movement, autonomy struggle, the election of 1970, and finally the Liberation War of 1971 — by which the eastern half of partitioned Bengal undid the settlement of 1947 and became Bangladesh. On the western side, the refugees and their descendants reshaped West Bengal's politics and memory, and the literature and cinema of both Bengals remain saturated with the lost home across the line.

Even the map was unfinished. Along the old Cooch Behar frontier lay the chhitmahals — 162 enclaves marooned inside the other country, whose 51,549 counted residents lived effectively stateless, without administration, school or clinic, for sixty-eight years. Under the India–Bangladesh Land Boundary Agreement they were at last exchanged, at midnight on 31 July 2015, their people free to choose citizenship where they stood. It was the final clause of Radcliffe's award to be settled.

Conclusion

Bengal's partition was decided by votes in an assembly, drawn in five weeks by a man who never saw the land, and then lived out over decades — in refugee colonies and jute fields cut off from their mills, in a capital that changed countries twice in a lifetime, in enclaves without a state. It divided a linguistic nation by religion, and in doing so created the conditions for that nation, in the east, to reunite itself by language in 1971. To understand either Bengal today — West Bengal or Bangladesh — the line of August 1947 is where the story starts.