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Partition and the Constituent Assembly – NDA History Notes
Coastal States, Gulfs, Straits, Islands and Maritime Zones of India
Indian Geography • Coastal Geography • PYQs Included
In the summer of 1947 CE, India experienced two of the most profound events in its recorded history, simultaneously.
One was a catastrophe. The British decision to divide British India into two independent countries, India and Pakistan, set in motion the largest forced migration in human history. Approximately 14 to 17 million people crossed the newly drawn borders between August and November 1947 CE. An estimated 200,000 to 2 million people were killed in communal violence. Entire villages were destroyed. Families were separated across borders that had not existed six months earlier. The rivers of Punjab ran with blood. The trains that carried refugees in both directions carried corpses as often as survivors. The partition of 1947 CE is remembered in the subcontinent’s collective memory as a wound that has not fully healed in three generations.
The other was a triumph. Even as partition and its violence engulfed northern India, a group of 299 men and women were meeting in New Delhi, in an elegant circular chamber in what is now the Parliament building, to write a constitution for independent India. They worked for nearly three years. They drew on constitutions from around the world, the United States, the United Kingdom, Ireland, Canada, Australia, France, and the Soviet Union, as well as India’s own Government of India Act 1935. When they finished, they had produced one of the longest and most comprehensive constitutions in the world, a document that would govern the lives of hundreds of millions of people.
These two events, the catastrophe of partition and the triumph of constitution-making, were not separate. They happened at the same time, and the people who lived through one also lived through the other. The framers of the Constitution wrote in the shadow of partition’s violence. The principles they enshrined, secularism, equality, the abolition of untouchability, fundamental rights for all citizens, were partly responses to the forces that had made partition necessary.
NDA has tested this chapter on four specific facts: the three alternative names for the Mountbatten Plan, the mechanism by which the first Prime Minister was appointed, the Sylhet referendum and its outcome, and a cross-reference to Direct Action Day from Chapter N8.
Master Timeline
December 1946 → Constituent Assembly first meets — 9 December 1946 CE
Objectives Resolution moved by Nehru — 13 December 1946 CE
16 Aug 1946 → Direct Action Day — Great Calcutta Killings [cross-reference N8]
March 1947 → Lord Mountbatten arrives as last Viceroy
3 June 1947 → Mountbatten Plan / Plan Balkan / June 3rd Plan announced [NDA 2012-II]
July 1947 → Indian Independence Act passed by British Parliament
15 August 1947 → Independence — India and Pakistan become dominions
17 August 1947 → Radcliffe Line (partition boundary) announced — two days after independence
1947 CE → Sylhet referendum — voted to join East Pakistan [NDA 2023-I]
Sep–Oct 1947 → Largest forced migration in human history
Sep 1948 → Operation Polo — Hyderabad integrated into India
26 Nov 1949 → Constitution adopted — Constitution Day (Samvidhan Divas)
26 Jan 1950 → Constitution comes into force — Republic Day
1971 CE → East Pakistan becomes Bangladesh
1. The Road to Partition
The Cabinet Mission Plan of 1946 CE, the last serious attempt to keep India united, had proposed a federal structure with three provincial groupings. Both the Congress and the Muslim League initially accepted it. But disagreement over the grouping clause caused the League to withdraw its acceptance. The plan collapsed.
What followed was a rapid descent into political crisis and communal violence. Direct Action Day on 16 August 1946 CE — called by the Muslim League to press for Pakistan — led to the Great Calcutta Killings in which thousands were killed. [NDA 2010-I, cross-reference from Chapter N8] The violence spread across Bengal and Bihar, demonstrating how close India had come to the edge of communal civil war.
Lord Mountbatten arrived as the last Viceroy in March 1947 CE with instructions to transfer power by June 1948 CE. He concluded quickly that a united India was impossible. The Constituent Assembly, already meeting from December 1946 CE, continued its work of constitution-making even as the political decision for partition was being made. Constitution-making and partition proceeded simultaneously.
2. The Mountbatten Plan — Three Names, One Document
The plan that determined the shape of independence is known by three different names. NDA has directly tested this. [NDA 2012-II]
| Name | Why Called This |
| Mountbatten Plan | Named after the Viceroy who announced it |
| Plan Balkan | Proposed dividing India like the Balkans — into smaller national states based on community |
| June 3rd Plan | Announced on 3 June 1947 CE |
All three names refer to the same plan. [NDA 2012-II] This is a frequently misunderstood fact. Students sometimes treat them as three separate constitutional proposals. They are not. One plan. Three names.
The plan proposed the partition of British India into two independent dominions — India and Pakistan — with power transferred on 15 August 1947 CE. Both the Congress and the Muslim League accepted the plan. The Indian Independence Act was passed by the British Parliament in July 1947 CE to give legal effect to the plan.
The three names refer to the same plan announced on 3 June 1947 CE. NOT three different proposals. NOT Plan Balkan and the Mountbatten Plan were separate. [NDA 2012-II]
3. The Indian Independence Act — July 1947 CE
The Indian Independence Act was passed by the British Parliament in July 1947 CE. It gave legal effect to the Mountbatten Plan and provided the constitutional framework for the transfer of power.
Under the Act, British India was divided into two independent dominions — India and Pakistan — from 15 August 1947 CE. Both dominions were to have their own Governor-Generals. British paramountcy over the Princely States ended. They were left free to accede to either dominion or remain independent. The office of Secretary of State for India was abolished.
4. The Partition — Human Dimensions
Sir Cyril Radcliffe and the Radcliffe Line
The boundary between India and Pakistan was drawn by Sir Cyril Radcliffe — a British lawyer who had never visited India before being given this assignment. He was given only five weeks to draw a border through Punjab and Bengal, dividing communities, villages, and families that had coexisted for centuries.
The Radcliffe Line — the partition boundary — was announced on 17 August 1947 CE — two full days after independence had already been declared. People who woke up on 15 August as citizens of an independent country did not know, for two more days, which country they were citizens of.
The Scale of Human Suffering
The partition of 1947 CE was the largest forced migration in human history. Approximately 14 to 17 million people crossed the newly drawn borders between August and November 1947 CE, Hindus and Sikhs moving eastward from what became Pakistan, and Muslims moving westward from what became India.
An estimated 200,000 to 2 million people were killed in communal violence. The range reflects the uncertainty of historical records from a period of extreme chaos. Entire communities were destroyed. The rivers of Punjab, the trains carrying refugees, and the roads between cities all became witnesses to violence of extraordinary intensity.
[Image Suggestion: A map showing the Radcliffe Line dividing Punjab and Bengal — the two provinces that were partitioned — alongside photographs of the refugee columns that crossed the border in both directions in August–November 1947]
5. The Sylhet Referendum
One of the most specific and directly tested facts of this chapter concerns the district of Sylhet.
Sylhet was a district of Assam at the time of partition — not of Bengal, as is sometimes assumed. [NDA 2023-I] Under the terms of the partition plan, Sylhet held a referendum in 1947 CE to decide whether it would remain with India or join Pakistan. [NDA 2023-I]
Sylhet voted to join East Pakistan in the referendum. [NDA 2023-I] East Pakistan later became Bangladesh in 1971 CE.
★ IMPORTANT Three elements of the Sylhet question are tested together. [NDA 2023-I] Location — Sylhet was a district of Assam, not Bengal. Decision — it voted to join East Pakistan in a referendum. Outcome — East Pakistan later became Bangladesh. NOT Sylhet voted to remain with India. NOT Sylhet was part of Bengal. NOT it was part of any province other than Assam at the time of partition.
The Sylhet referendum was the only district to hold a referendum during the partition process. Other provinces and districts were assigned to India or Pakistan by the Boundary Commission. Sylhet alone had the specific mechanism of a public vote.
6. Integration of the Princely States
When British paramountcy ended on 15 August 1947 CE, approximately 560 Princely States were technically independent. They were not automatically part of India or Pakistan. The integration of these states into the Indian Union was one of the most remarkable achievements of the new government’s early months.
Sardar Vallabhbhai Patel, the Home Minister, led the integration. His principal instrument was the Instrument of Accession — a legal document by which each ruler agreed to join India (or Pakistan), transferring control of defence, foreign affairs, and communications to the new government while retaining internal autonomy.
The Three Difficult Cases
| State | Problem | Resolution |
| Hyderabad | Nizam refused to accede. Large Muslim-ruled state with mostly Hindu population. | Operation Polo (Police Action) — Indian military intervention — September 1948 CE — Hyderabad joined India. |
| Junagadh | Muslim ruler wanted to join Pakistan despite Hindu-majority population. | Plebiscite held — population voted for India. |
| Kashmir | Hindu ruler Maharaja Hari Singh delayed. Pakistani-backed tribal forces invaded in October 1947 CE. | Maharaja signed Instrument of Accession to India — Indian troops airlifted. The dispute continues. |
7. The Constituent Assembly — Making the Indian Constitution
The Assembly’s Formation and Composition
The Constituent Assembly was established under the Cabinet Mission Plan of 1946 CE. It first met on 9 December 1946 CE — before independence and before partition.
| Fact | Detail |
| Established under | Cabinet Mission Plan 1946 CE |
| First meeting | 9 December 1946 CE |
| Temporary President | Dr Sachchidananda Sinha (oldest member) |
| Permanent President | Dr Rajendra Prasad (elected at second session) |
| Initial membership | 389 members |
| After partition | 299 members (Pakistani representatives departed) |
| Election method | Indirect — chosen by provincial legislative assembly members |
The Constituent Assembly was not directly elected by the Indian people. Its members were chosen indirectly, elected by members of the provincial legislative assemblies. This is an important distinction.
Key Figures
| Person | Role | Key Contribution |
| Dr B.R. Ambedkar | Chairman, Drafting Committee | Father of the Indian Constitution. Led the actual drafting of the constitutional text. |
| Dr Rajendra Prasad | President, Constituent Assembly | Presided over proceedings. Later became First President of India. |
| Jawaharlal Nehru | First Prime Minister | Moved the Objectives Resolution on 13 December 1946 CE. |
| K.M. Munshi | Drafting Committee member | Important drafter of the constitutional text. |
| Sir B.N. Rau | Constitutional Adviser | Provided technical guidance to the Assembly. |
The Objectives Resolution
Jawaharlal Nehru moved the Objectives Resolution on 13 December 1946 CE — at the Constituent Assembly’s first substantive session. The Resolution declared India’s commitment to being a sovereign, democratic republic and committed to justice, liberty, equality, and fraternity for all citizens.
The Objectives Resolution became the philosophical basis of the Preamble of the Indian Constitution. But it is not the same text as the Preamble. It provided the philosophical basis. The Preamble was drafted separately.
Constitution-Making Timeline
9 December 1946 CE → Constituent Assembly first meets
13 December 1946 CE → Objectives Resolution moved by Nehru
August 1947 CE → Membership reduced from 389 to 299 after partition
February 1948 CE → Drafting Committee submits draft Constitution
26 November 1949 CE → Constitution ADOPTED — Constitution Day (Samvidhan Divas)
26 January 1950 CE → Constitution COMES INTO FORCE — Republic Day
The Constitution was adopted on 26 November 1949 CE — this is Constitution Day. It came into force on 26 January 1950 CE — this is Republic Day. These are two different dates. NOT the Constitution was adopted and came into force on the same date.
26 January was chosen as Republic Day because it was the date of the Pledge of Independence (1930 CE) — when the Congress publicly declared independence as its goal.
8. Key Constitutional Features and Sources
The Indian Constitution drew from many sources, Indian and international.
| Feature | Source / Inspiration |
| Federal structure | Government of India Act 1935 CE |
| Fundamental Rights | American Constitution; Karachi Resolution 1931 |
| Directive Principles | Irish Constitution |
| Parliamentary democracy | British Westminster model |
| Emergency provisions | Government of India Act 1935 CE |
| Abolition of untouchability (Article 17) | Ambedkar’s lifelong campaign |
| Universal adult franchise | — |
| Reservations for SC/ST | Poona Pact 1932 (political representation tradition) |
The Indian Constitution is one of the longest constitutions in the world. Its length reflects the framers’ decision to codify in constitutional text many provisions that other countries leave to ordinary legislation, partly because India’s social diversity and the recent history of partition made the framers unwilling to trust ordinary legislation to protect minority rights and social equality.
[Image Suggestion: A photograph of the Constituent Assembly in session — showing the circular chamber in what is now the Parliament of India, with members gathered to draft the Constitution that would come into force on 26 January 1950]
9. The First Prime Minister of India
Jawaharlal Nehru was India’s first Prime Minister. His appointment is directly tested by NDA in a specific and technical way. [NDA 2012-II]
Jawaharlal Nehru was appointed as the first Prime Minister of India by Viceroy Lord Mountbatten — on the basis of the Congress party’s recommendation. [NDA 2012-II]
He was NOT directly elected to the position by the Indian people. The Constitution did not yet exist on 15 August 1947 CE. India was governed under modified provisions of the Government of India Act 1935 at independence. The Viceroy (acting as Governor-General from 15 August onward) appointed the Prime Minister on the basis of the party that commanded confidence in the legislature.
NOT the first PM was directly elected by the people. NOT Mountbatten chose independently. The appointment was based on the Congress party’s recommendation. [NDA 2012-II]
Common Mistakes
Mistake 1: Thinking Plan Balkan, Mountbatten Plan, and June 3rd Plan Were Three Different Proposals
All three are names for the same plan — announced on 3 June 1947 CE. [NDA 2012-II] The Mountbatten Plan is named after the Viceroy. Plan Balkan refers to the analogy with the division of the Balkans. The June 3rd Plan refers to the date of announcement. NOT three different constitutional proposals.
Mistake 2: Thinking the First Prime Minister Was Directly Elected by the People
Jawaharlal Nehru was appointed as the first Prime Minister by Viceroy Lord Mountbatten on the basis of the Congress party’s recommendation. [NDA 2012-II] The Constitution did not yet exist on 15 August 1947 CE. He was NOT directly elected to the position by the Indian people.
Mistake 3: Thinking Sylhet Voted to Remain with India
Sylhet held a referendum in 1947 CE and voted to join East Pakistan. [NDA 2023-I] East Pakistan later became Bangladesh in 1971 CE. NOT Sylhet voted to remain with India.
Mistake 4: Thinking Sylhet Was Part of Bengal
Sylhet was a district of Assam — not Bengal — at the time of partition. [NDA 2023-I] This is a commonly confused fact because both Sylhet and Bengal are in the northeastern region and both were divided by partition.
Mistake 5: Thinking the Constitution Was Adopted and Came into Force on the Same Date
The Constitution was adopted on 26 November 1949 CE — this is Constitution Day. It came into force on 26 January 1950 CE — this is Republic Day. Two different dates. 26 January was chosen because it was the date of the Pledge of Independence (1930 CE).
Mistake 6: Thinking Rajendra Prasad Was the Temporary President of the Constituent Assembly
Dr Sachchidananda Sinha, the oldest member, served as Temporary President of the Constituent Assembly at the first meeting. Dr Rajendra Prasad was elected as the Permanent President at the second session. Two different figures. Two different roles.
Mistake 7: Thinking the Constituent Assembly Was Directly Elected by the People
The Constituent Assembly was not directly elected by the Indian people. Its members were chosen indirectly — elected by members of the provincial legislative assemblies. This reflected the political realities of 1946 CE, when universal adult franchise was not yet in place for assembly elections.
Mistake 8: Thinking the Objectives Resolution Is the Same as the Preamble
The Objectives Resolution moved by Nehru on 13 December 1946 CE provided the philosophical basis for the Preamble — but they are not identical texts. The Preamble was drafted separately and is a shorter, more formal statement. The Objectives Resolution was the political declaration; the Preamble is the constitutional text.
Mistake 9: Thinking Radcliffe Had Prior Knowledge of India
Sir Cyril Radcliffe had never visited India before being assigned to draw the partition boundary. He had only five weeks for the task. The Radcliffe Line was announced 17 August 1947 — two days after independence — meaning India and Pakistan’s citizens did not know exactly which country they were in for two days after independence was declared.
Mistake 10: Confusing When the Radcliffe Line Was Announced
The Radcliffe Line was announced on 17 August 1947 CE — two days after independence on 15 August 1947 CE. NOT announced on 15 August. NOT announced before independence.
Quick Revision
THE ROAD TO PARTITION – Cabinet Mission Plan (1946 CE) — last attempt to keep India united — collapsed – Direct Action Day — 16 August 1946 CE — Muslim League — press for Pakistan — Great Calcutta Killings [NDA 2010-I cross-reference from N8] – Mountbatten arrived March 1947 CE — concluded united India impossible – Constituent Assembly already meeting from December 1946 CE — Constitution-making proceeded alongside partition
THE MOUNTBATTEN PLAN / PLAN BALKAN / JUNE 3RD PLAN [NDA 2012-II]
All three names refer to the same plan announced on 3 June 1947 CE [NDA 2012-II]
| Name | Why Called This |
| Mountbatten Plan | Named after the Viceroy who announced it |
| Plan Balkan | Proposed dividing India like the Balkans |
| June 3rd Plan | Announced on 3 June 1947 CE |
- NOT three different plans — three names for one plan [NDA 2012-II]
- Proposed partition into two independent dominions — India and Pakistan
- Power transferred on 15 August 1947 CE
THE FIRST PRIME MINISTER OF INDIA [NDA 2012-II] – First PM = Jawaharlal Nehru – Appointed by = Viceroy Lord Mountbatten – Based on = Congress party’s recommendation [NDA 2012-II] – NOT directly elected by the people – NOT Mountbatten chose independently
THE PARTITION — HUMAN DIMENSIONS – Sir Cyril Radcliffe — drew the partition boundary (Radcliffe Line) – Had never visited India before — given only five weeks – Radcliffe Line announced 17 August 1947 CE — two days after independence – Mass migration — approximately 14 to 17 million people crossed the borders – Deaths — estimated 200,000 to 2 million – Largest forced migration in human history
THE SYLHET REFERENDUM [NDA 2023-I] – Sylhet was a district of Assam at the time of partition — NOT Bengal [NDA 2023-I] – Held a referendum in 1947 CE to decide whether to join Pakistan [NDA 2023-I] – Voted to join East Pakistan [NDA 2023-I] – East Pakistan later became Bangladesh (1971 CE) – Only district to hold a referendum during the partition process – NOT Sylhet voted to remain with India – NOT Sylhet was part of Bengal — it was part of Assam
INTEGRATION OF PRINCELY STATES – Approximately 560 Princely States — technically independent when British paramountcy ended – Sardar Vallabhbhai Patel (Home Minister) led the integration – Most states signed Instrument of Accession to India
Three Difficult Cases:
| State | Problem | Resolution |
| Hyderabad | Nizam refused to accede | Operation Polo — September 1948 CE — joined India |
| Junagadh | Muslim ruler wanted Pakistan | Plebiscite — voted for India |
| Kashmir | Maharaja delayed — Pakistani-backed forces invaded | Maharaja signed Instrument of Accession — Indian troops sent — dispute continues |
THE CONSTITUENT ASSEMBLY [NDA 2012-II cross-reference]
| Fact | Detail |
| Established under | Cabinet Mission Plan 1946 CE |
| First meeting | 9 December 1946 CE |
| Temporary President | Dr Sachchidananda Sinha (oldest member) |
| Permanent President | Dr Rajendra Prasad (elected at second session) |
| Initial membership | 389 members |
| After partition | 299 members |
| Election method | Indirect — chosen by provincial legislative assembly members |
- Constituent Assembly was NOT directly elected by the people
KEY FIGURES
| Person | Role | Key Contribution |
| Dr B.R. Ambedkar | Chairman, Drafting Committee | Father of the Indian Constitution |
| Dr Rajendra Prasad | President, Constituent Assembly | First President of India |
| Jawaharlal Nehru | First Prime Minister | Moved Objectives Resolution — 13 December 1946 CE |
| K.M. Munshi | Drafting Committee member | Important drafter |
| Sir B.N. Rau | Constitutional Adviser | Technical guidance |
THE OBJECTIVES RESOLUTION – Moved by Jawaharlal Nehru on 13 December 1946 CE – Declared India’s commitment to being a sovereign, democratic republic – Committed to justice, liberty, equality, and fraternity for all citizens – Became the philosophical basis of the Preamble — NOT the same text as the Preamble
CONSTITUTION-MAKING TIMELINE
| Date | Event |
| 9 December 1946 CE | Constituent Assembly first meets |
| 13 December 1946 CE | Objectives Resolution moved by Nehru |
| August 1947 CE | Membership reduced from 389 to 299 after partition |
| February 1948 CE | Drafting Committee submits draft Constitution |
| 26 November 1949 CE | Constitution ADOPTED — Constitution Day (Samvidhan Divas) |
| 26 January 1950 CE | Constitution COMES INTO FORCE — Republic Day |
- 26 January chosen because it was the date of the Pledge of Independence (1930 CE)
- NOT adopted and came into force on the same date — two different dates
KEY CONSTITUTIONAL FEATURES AND SOURCES
| Feature | Source |
| Federal structure | Government of India Act 1935 CE |
| Fundamental Rights | American Constitution; Karachi Resolution 1931 |
| Directive Principles | Irish Constitution |
| Parliamentary democracy | British Westminster model |
| Emergency provisions | Government of India Act 1935 CE |
| Abolition of untouchability (Article 17) | Ambedkar’s lifelong campaign |
| Reservations for SC/ST | Poona Pact 1932 |
Previous Year Questions
This chapter contains previous-year questions from NDA (2007–2025) with Detailed Solutions, Exam-wise classification, Concept-wise explanations and Difficulty analysis.
