By the 1940s, India's independence movement had a second, urgent question layered on top of the fight against Britain. Would a free India be one country, or two?
The Indian National Congress, led by Gandhi and Nehru, wanted a single, secular India where people of every religion were equal citizens. The Muslim League, led by Muhammad Ali Jinnah, increasingly disagreed.
The Two-Nation theory: Jinnah argued that Hindus and Muslims were not just two religious communities but two separate nations, with different customs, laws and ways of life. If they shared one state after the British left, he warned, Muslims would become a permanent minority dominated by a Hindu majority. The only safe outcome, he concluded, was a separate Muslim state: Pakistan.
This idea did not appear overnight. Tension had been building for decades — through separate electorates in the Government of India Acts, and through disputes over whether Congress ministries (1937–39) truly protected Muslim interests. But it hardened into a formal demand at the League's Lahore session in March 1940, which called for 'independent states' for Muslims in the north-west and north-east of India.
- Congress's failures during WWII (1942) — the Quit India campaign led to mass arrests of Congress leaders, while the League, which supported the British war effort, grew stronger and gained administrative experience.
- Direct Action Day, 16 August 1946 — Jinnah called for a day of protest to demonstrate Muslim support for Pakistan; in Calcutta, this triggered communal riots that killed an estimated 4,000–10,000 people in four days.
- Breakdown of the Cabinet Mission Plan (1946) — a British proposal for a loose, three-tier federation to keep India united collapsed when Congress and the League could not agree on its details, convincing many that compromise was impossible.
- Growing communal violence 1946–47 — riots spread from Calcutta to Bihar, Noakhali and Punjab, each act of violence feeding fear and revenge in a spiral that made a single, united India feel less and less workable.
A debate historians still have: Was Partition inevitable, or did specific decisions cause it? For a 'to what extent' essay, you need to be able to argue both sides and reach your own judgement.
Inevitable
- Deep religious and cultural differences
- Two separate states were the natural outcome once democratic politics arrived in India
Caused by decisions
- Short-term political failures: Congress's wartime missteps, British haste, personal rivalries between Nehru and Jinnah
- These hardened positions that could still have been bridged
By early 1947, violence was spreading and the British government, exhausted by war debts and losing control of law and order, wanted out fast. That urgency shaped what came next.
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In March 1947, Lord Louis Mountbatten arrived as Britain's last Viceroy with one urgent task: get Britain out of India, and fast.
He quickly concluded that a united India was no longer achievable without a civil war breaking out first. His solution, announced on 3 June 1947, was to partition British India into two new dominions — India and Pakistan — and to bring independence forward from June 1948 to just 10 weeks later, on 15 August 1947.
The plan is announced
On 3 June 1947, Mountbatten announced that British India would split into India and Pakistan, with princely states free to choose which to join (or, in theory, stay independent).
The boundary is drawn
A British lawyer, Cyril Radcliffe, who had never been to India before, was given just about five weeks to draw the new border through Punjab and Bengal using old maps and census data.
The line is revealed
The Radcliffe Line was kept secret until two days after independence, so millions did not know which country their village was in until it was too late to plan an orderly move.
Mass migration begins
Hindus and Sikhs fled west-to-east across Punjab; Muslims fled east-to-west — often on the same roads, at the same time, in both directions.
Announce → draw the line → reveal it late → chaos follows.
The scale of the tragedy: Around 10–15 million people crossed the new borders in 1947 — the largest mass migration in recorded history.
What it meant
- Trains arrived at stations full of murdered passengers
- Refugee columns stretched for miles
- Estimates of the dead from communal violence, disease and starvation during the migration range from around 200,000 up to two million
- Hundreds of thousands of women were abducted or assaulted
- There is no precise figure, partly because record-keeping collapsed amid the chaos
Punjab and Bengal suffered worst because the new border cut directly through them, splitting Sikh, Hindu and Muslim communities that had lived side by side for generations.
Argument: Britain bears major responsibility
- Rushed the timetable from mid-1948 to August 1947, giving no time to plan safe transfers
- Radcliffe had no local knowledge and no time to consult communities on the ground
- The boundary was kept secret until after independence, removing any chance to migrate safely
- Withdrew troops and administrators rather than keeping enough forces to maintain order
Argument: deeper local forces drove the violence
- Communal tension and organised violence (e.g. Direct Action Day) predated Mountbatten's arrival
- Local militias, gangs and political leaders on both sides incited and organised attacks
- Congress and the League leaders themselves accepted the plan and its speed
- Even a slower, better-planned Partition would still have required drawing a border through mixed communities
Using this in a Paper 3 essay: Don't just describe the violence — use it as evidence. If your essay claim is about WHO caused Partition's tragedy, weigh British haste (a policy failure) against communal mobilisation on the ground (which Britain did not create but failed to contain). A strong answer holds both factors together rather than picking just one.
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Independence did not hand India a finished country. It handed Nehru's government a patchwork of over 550 semi-independent princely states, no agreed western border with Pakistan, and a shattered economy.
Integrating the princely states
Under British rule, these states had kept internal self-government while Britain controlled defence and foreign policy. When British paramountcy lapsed in August 1947, each ruler technically became free to join India, join Pakistan, or stay independent.
Sardar Patel, the 'Iron Man of India': As Deputy Prime Minister and Home Minister, Vallabhbhai Patel took charge of integration, working closely with civil servant V.P. Menon. By 1949, nearly all 550+ states had signed the Instrument of Accession joining India.
Their approach
- Incentives: rulers who acceded peacefully kept their titles and a guaranteed income, the privy purse
- Firm political pressure
- Force, in a few holdout cases
| State | Problem | How it was resolved |
|---|---|---|
| Junagadh | Muslim ruler wanted to join Pakistan; population was mostly Hindu | Indian troops moved in (1947); a referendum confirmed accession to India |
| Hyderabad | Hindu-majority state ruled by a Muslim Nizam who wanted independence | India launched 'Operation Polo' (Sept 1948), a brief military action forcing accession |
| Kashmir | Hindu ruler, Muslim-majority population, ruler delayed choosing | Tribal invasion from Pakistan forced the ruler to accede to India (Oct 1947) — leading to war |
The Kashmir dispute and the first India–Pakistan war
Kashmir was the hardest case of all, and its consequences are still unresolved today.
Maharaja Hari Singh, Kashmir's Hindu ruler, hesitated over accession, hoping to remain independent. In October 1947, Pakistani-backed Pashtun tribal fighters invaded, hoping to force Kashmir into Pakistan. Panicked, Hari Singh signed the Instrument of Accession to India in exchange for military help, and Indian troops were flown in to push the invaders back.
War and stalemate: Fighting between Indian and Pakistani-backed forces continued into 1948. India took the dispute to the newly formed United Nations, which brokered a ceasefire in January 1949. The result was a Line of Control splitting Kashmir roughly two-thirds to India, one-third to Pakistan — not a peace treaty, just a frozen front line that both countries still contest.
- India's position — Kashmir's ruler legally acceded, so the whole state is Indian territory; a promised plebiscite never happened because Pakistan did not withdraw its forces first, as the UN required.
- Pakistan's position — Kashmir's Muslim-majority population should have determined its own future through a fair vote, and India used a ruler's signature to override the people's wishes.
- Long-term significance — Kashmir triggered two more India–Pakistan wars (1965, 1999) and remains one of the world's most militarised, disputed borders — a direct, unresolved legacy of 1947.
Nation-building under Nehru
Beyond the emergencies of integration and Kashmir, Prime Minister Jawaharlal Nehru (1947–64) had to build a functioning state from scratch.
A secular democracy
India's 1950 Constitution created a parliamentary democracy guaranteeing equal citizenship regardless of religion — a deliberate contrast to Pakistan's Islamic-state model.
Linguistic states
The States Reorganisation Act (1956) redrew internal borders along language lines, managing regional identity without breaking the country apart.
Planned economy
Five-Year Plans (from 1951) pushed industrialisation and self-sufficiency, though slow growth and poverty remained major challenges.
Non-alignment abroad
Nehru refused to fully join either Cold War bloc, positioning India as a leader of newly independent nations instead.
Secular constitution → linguistic states → five-year plans → non-alignment.
A judgement to weigh: Was Nehru's nation-building mostly a success? Supporters point to India remaining a unified democracy — remarkable given Partition's chaos, deep poverty and huge diversity. Critics point to slow economic growth compared with plans, unresolved Kashmir, and continuing communal tension. Both are defensible positions for an essay — the key is using specific evidence for whichever judgement you reach.