- Span
- 3 June – 15 August 1947
- Place
- Punjab, Bengal, Delhi, Lahore
- Form
- Turning point — One chain of events, read in sequence.
- Published
- 2026-09-12
What made it possible
- The 1937 provincial elections under the 1935 Government of India Act gave the Congress large majorities, which the Muslim League read as evidence that a federal India would be a Hindu-majority state.
- The 1940 Lahore Resolution moved the League's demand from safeguards to a separate state, and the 1946 elections confirmed its support among Muslim voters.
- Britain's post-war finances made holding India untenable: the 1946 Cabinet Mission's plan for a loose federation was accepted by the League and rejected by Congress.
- The 16 August 1946 Direct Action Day in Calcutta produced about 4,000 deaths in three days and established that communal violence could be organised at scale.
Who acted
- Cyril Radcliffe
- British lawyer given five weeks to draw the boundary; arrived in India on 8 July 1947 and had never been there before
- Louis Mountbatten
- Last Viceroy; advanced the transfer of power from June 1948 to August 1947
- Muhammad Ali Jinnah
- Leader of the Muslim League; obtained a separate state with two wings 1,600 km apart
- Jawaharlal Nehru
- First prime minister of India; had argued for a united state with a strong centre
Five weeks and a map
Radcliffe was given a boundary commission with four judges, two nominated by Congress and two by the League, and a mandate to divide Punjab and Bengal on the basis of Muslim and non-Muslim majority areas while respecting, as far as possible, districts, communications and water systems. He arrived on 8 July, heard submissions through July, and delivered the award in mid-August.
Two features of the process mattered. The boundary was drawn for a region he had not visited, and it was kept secret until after independence day because Mountbatten wanted the ceremonies to take place in a settled political atmosphere. The result was that populations learned which side they were on only after the migration had started, and the Punjab boundary in particular cut through canal colonies built as single irrigation systems.
What the numbers were
The demographic scale of the transfer was unprecedented in the twentieth century up to that point. Its administration was improvised: refugee camps, property claims and 'evacuee property' offices were created over months, and the two governments agreed a framework for settling claims only after the migrations were under way.
The two wings of Pakistan were separated by 1,600 kilometres of Indian territory, an arrangement that had to be run by air and sea and that collapsed in 1971 when East Pakistan became Bangladesh after a war involving Indian forces.
| Item | Estimate |
|---|---|
| People who moved between 1947 and 1951 | 10–15 million |
| Deaths in the communal violence of 1946–48 | several hundred thousand to 2 million, disputed |
| Princely states integrated into India | about 565 |
| Distance between West and East Pakistan | about 1,600 km |
The settlements that were left undone
Kashmir's ruler signed an instrument of accession to India in October 1947 while the state had a Muslim majority, which produced the first India-Pakistan war within months and a ceasefire line that became the de facto border. Hyderabad, whose ruler wanted independence, was annexed by India in 1948 after a four-day campaign, and Junagadh's ruler's accession to Pakistan was reversed by Indian action.
Those three cases set the pattern for the next seventy years: partition drew a border but left the political question of what constitutes the nation unanswered, which is why the dispute that began in 1947 has outlived the generation that conducted it.
Consequence: short and long
Immediately
Two states were created, between 10 and 15 million people were displaced, and the boundaries left Kashmir and Hyderabad as unresolved disputes that produced wars within months.
Over the long run
Partition determined the strategic shape of South Asia for the next seventy years: three wars between India and Pakistan, a nuclear arms race, and a permanent military-budget priority in both states. It also produced the largest refugee resettlement programme in history up to that point — Punjab's land was redistributed to arriving refugees on a scale that changed the province's property structure within a decade.
The usual misconception
That the violence was a spontaneous outbreak of ancient hatred. The massacres of 1946–47 followed organised mobilisation by political parties and were concentrated where local administration had broken down, particularly in Punjab after March 1947 when the coalition government collapsed. Calcutta in August 1947, where the killing stopped, is the counter-example: a city with the same communal mix and a functioning political agreement.
Sources
- Yasmin Khan, The Great Partition: The Making of India and Pakistan (2007) — Takes the experience of ordinary people as the organising principle.
- Ramachandra Guha, India After Gandhi (2007) — Detailed on the integration of the princely states after 1947.
- Vazira Fazila-Yacoobali Zamindar, The Long Partition and the Making of Modern South Asia (2007) — On the refugee and property administration that followed the boundary award.
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