The transfer of power in August 1947 was not a single political event but a tightly sequenced legal process: a failed federation under the Cabinet Mission, a partition blueprint in the Mountbatten Plan, an enabling statute in the Indian Independence Act, 1947, an administrative line drawn by Sir Cyril Radcliffe, and the absorption of more than 550 princely states. For judiciary and CLAT-PG aspirants this topic sits at the seam between history and constitutional law: the very provisions that created two dominions later supplied the courts with their doctrines on citizenship, territorial cession and the limits of executive power. This chapter traces that sequence and the case law it generated.
The road to partition: Cripps, the Cabinet Mission and the failure of federation
The constitutional endgame of British rule unfolded across a decade of failed bargains. The Cripps Mission (1942), sent during the Second World War, offered Dominion status after the war and, crucially, conceded the right of any province to stay out of the proposed Indian Union, planting the seed of partition. The Congress rejected the offer as a "post-dated cheque", and the Muslim League rejected it for not conceding Pakistan outright.
The decisive attempt came with the Cabinet Mission Plan of 16 May 1946. It proposed a loose three-tier federation: a weak Union Centre controlling only foreign affairs, defence and communications; autonomous provinces; and intermediate "groupings" of provinces. The Plan explicitly rejected the demand for a fully sovereign Pakistan as impractical, while attempting to accommodate Muslim-majority concentrations through Sections (groups) A, B and C. It failed because the Congress and the League read the grouping clause irreconcilably-the Congress treated grouping as optional, the League as compulsory. The collapse of the Cabinet Mission scheme, followed by the Direct Action Day violence of August 1946, convinced London that a unitary settlement was impossible. The story of how earlier empires also fractured along regional lines is sketched in our notes on the Mughal Empire.
The Mountbatten Plan (3 June 1947)
Lord Louis Mountbatten, the last Viceroy, abandoned the Cabinet Mission's federal vision and accepted partition. The 3 June 1947 Plan (also called the Mountbatten Plan or the "Dickie Bird"/Plan Balkan in its earlier drafts) set out the mechanics of division. Its essentials were: the Legislative Assemblies of Bengal and Punjab would meet in two parts-representatives of Muslim-majority and non-Muslim-majority districts-and a simple majority of either part voting for partition would partition the province. The North-West Frontier Province and the Sylhet district of Assam would decide by referendum, and Sind's assembly would take its own decision.
The Plan compressed the timetable dramatically, advancing the date of transfer to 15 August 1947. It also made clear that the princely states would not be forced into either dominion-British paramountcy would simply lapse, leaving each ruler to accede or stay out. The Plan was accepted by the Congress, the Muslim League and the Sikhs, and it became the political foundation on which the Indian Independence Act, 1947 was built. The acceleration of the timetable-five weeks, not the originally contemplated June 1948-would later be blamed for the administrative chaos and communal bloodshed that accompanied the boundary award.
The Indian Independence Act, 1947: the enabling statute
The Indian Independence Act, 1947 received Royal Assent on 18 July 1947 and gave statutory force to the partition. Its operative provisions repay close reading for exam purposes:
Section 1 set up, as from 15 August 1947, two independent Dominions to be known as India and Pakistan. Section 2 defined the territories of each Dominion, carving Pakistan out of East Bengal, West Punjab, Sind, British Baluchistan and (subject to the referendum) the North-West Frontier Province and Sylhet. Section 3 provided for the partition of Bengal and Punjab and for the boundary commissions. Section 5 provided for a Governor-General for each Dominion as representative of the Crown, and famously one person-Mountbatten-served as Governor-General of India while Jinnah took the office for Pakistan.
Section 6 conferred on the legislature of each Dominion full power to make laws, including laws having extra-territorial operation, and removed the paramountcy of British statutes-no Act of the United Kingdom Parliament would extend to a Dominion unless requested and consented to by its legislature. Section 7 terminated British suzerainty over the princely states and lapsed all existing treaties and standstill arrangements, the legal hinge on which the integration of the states turned. Section 8 adapted the Government of India Act, 1935 to serve as the interim constitution of each Dominion until a Constituent Assembly framed a new one. The Act thus simultaneously dissolved the British Indian Empire and supplied the transitional constitutional scaffolding that the framers in Delhi would replace on 26 January 1950.
Drawing the line: the Radcliffe Boundary Commissions
The physical division of Punjab and Bengal was entrusted to two Boundary Commissions, each chaired by Sir Cyril John Radcliffe, a British barrister who had never before visited India. Appointed in early July 1947, Radcliffe was given barely five weeks to apportion territory between the two dominions. Each commission had four judicial members-two nominated by the Congress and two by the League-so that the Punjab commission included Justices Mehr Chand Mahajan and Teja Singh alongside Justices Din Mohammad and Muhammad Munir, while the Bengal commission comprised Justices C. C. Biswas and B. K. Mukherjee with Justices Abu Saleh Akram and S. A. Rahman.
The terms of reference directed Radcliffe to demarcate the boundary on the basis of contiguous majority areas of Muslims and non-Muslims, while also taking into account "other factors"-an undefined phrase that allowed weight to be given to canals, communications and economic considerations. The judicial members deadlocked along communal lines, leaving Radcliffe to decide as sole arbiter. The Radcliffe Award was finalised before independence but, on Mountbatten's decision, was not published until 17 August 1947-two days after the transfer of power-so that the British would not be administering the disorder its announcement triggered. The Award gave the western part of Punjab and the eastern part of Bengal to Pakistan and the remainder to India. Its hurried, map-based demarcation left ambiguities-most notably around the Berubari Union-that would generate constitutional litigation a decade later.
The human cost: migration, violence and evacuee property
Partition triggered one of the largest and most violent forced migrations in recorded history, with estimates of those displaced ranging into the tens of millions and the dead into hundreds of thousands. The communal violence concentrated in divided Punjab and Bengal, and the sudden movement of populations created legal problems that outlasted the bloodshed by decades.
Chief among these was the question of evacuee property-the lands and houses abandoned by those who fled across the new border. The legislatures of both dominions enacted laws to vest such property in a Custodian, culminating on the Indian side in the Administration of Evacuee Property Act, 1950. The displaced and their descendants also raised acute questions of citizenship: who, among the millions in motion, belonged to which new state? The Constituent Assembly answered these in Part II of the Constitution, discussed below.
The evacuee-property regime generated its own jurisprudence. The Custodian was empowered to take charge of, manage and even transfer evacuee property, and a person declared an "evacuee" lost the ordinary incidents of ownership. The courts repeatedly had to balance the rehabilitation purpose of the legislation against the property rights of those caught on the wrong side of the line, including those who had migrated only temporarily during the violence and later sought restoration. Allied measures-displaced-persons compensation and rehabilitation laws-built a parallel statutory scheme to resettle refugees on evacuee lands. The scale of dislocation underscores why partition is studied not as an abstract boundary exercise but as a continuing source of property, citizenship and rehabilitation law, and why its statutes were litigated well into the 1960s and beyond.
Citizenship at the founding: Articles 5 to 11
Because partition set masses in motion across the new frontier, the framers had to fix who would be a citizen of India at the commencement of the Constitution. Article 5 conferred citizenship on every person domiciled in India who was born in India, or either of whose parents was born in India, or who had been ordinarily resident in India for at least five years before commencement.
Article 6 addressed migrants from Pakistan: a person who migrated to India was a citizen if he or a parent or grandparent was born in undivided India (as defined by the Government of India Act, 1935), and-if he migrated before 19 July 1948-had resided in India since migration, or-if on or after that date-had been registered as a citizen after six months' residence. Article 7 dealt with migrants to Pakistan: a person who, after 1 March 1947, migrated from India to the territory now in Pakistan was deemed not to be a citizen of India, unless he had returned under a permit for resettlement or permanent return. The Supreme Court read Article 7 strictly in cases such as State of Bihar v. Kumar Amar Singh and Kulathil Mammu v. State of Kerala, treating even a temporary departure to Pakistan as "migration" for the relevant period. Articles 8 to 11 extended citizenship to persons of Indian origin resident abroad, barred dual citizenship, and reserved to Parliament the power to legislate further-power exercised through the Citizenship Act, 1955.
Integration of the princely states
The lapse of paramountcy under Section 7 of the Indian Independence Act, 1947 left some 560-odd princely states theoretically free to accede to India or Pakistan or to remain independent. The integration of these states-occupying roughly two-fifths of the subcontinent's territory-was achieved largely by the diplomacy of Sardar Vallabhbhai Patel and the administrative skill of V. P. Menon through the new States Department.
The legal instrument was the Instrument of Accession, by which a ruler ceded to the Dominion only three subjects-defence, external affairs and communications-while retaining internal autonomy. Most rulers signed before 15 August 1947. The hard cases were three. Junagadh, a Hindu-majority state with a Muslim ruler who acceded to Pakistan, was brought into India after a plebiscite in February 1948. Hyderabad, whose Nizam sought independence after a Standstill Agreement, was integrated through the military action codenamed Operation Polo in September 1948. Jammu and Kashmir, whose Maharaja Hari Singh acceded to India by an Instrument of Accession executed on 26 October 1947 following the tribal invasion from Pakistan, supplied the constitutional foundation for Article 370. The tradition of large composite states governed from a strong centre echoes patterns explored in our notes on the Mauryan Empire. A second wave of integration merged smaller states into unions and, ultimately, into the reorganised states of the Union.
For the new Indian state, accession was only the first step; merger and full constitutional integration followed. Rulers signed Merger Agreements surrendering internal sovereignty in exchange for privy purses and the recognition of titles-arrangements later abolished by the Constitution (Twenty-sixth Amendment) Act, 1971, upheld in subsequent litigation. The States, formerly classified as Part B States under the original Constitution, were assimilated to ordinary States by the States Reorganisation Act, 1956. Thus the lapse of paramountcy in Section 7 of the 1947 Act set in motion a layered process-accession, then merger, then reorganisation-that took the better part of a decade to complete and that transformed a patchwork of over five hundred sovereignties into a single constitutional Union.
Berubari and the law of territorial cession
The most important constitutional consequence of the messy Radcliffe demarcation reached the Supreme Court in In re The Berubari Union and Exchange of Enclaves, AIR 1960 SC 845. The Radcliffe Award had described the Bengal boundary ambiguously, and the Indo-Pakistan Nehru-Noon Agreement of 1958 proposed to divide the Berubari Union between the two states and to exchange enclaves. A reference was made to the Court under Article 143.
The Court, speaking through Gajendragadkar J., held two propositions of lasting significance. First, the Preamble is not a source of substantive power and cannot itself authorise cession of territory-though it is a key to the makers' intentions. Second, and decisively, the cession of Indian territory to a foreign state cannot be effected by executive action or by ordinary legislation under Article 3; it requires a constitutional amendment under Article 368, because it alters the territory of India fixed by the First Schedule. Article 3, which permits Parliament to alter the areas and boundaries of States within the Union, does not extend to giving away national territory. The decision led directly to the Constitution (Ninth Amendment) Act, 1960, to give effect to the agreement-establishing the template that every transfer of sovereign territory needs Article 368.
Maganbhai and the limits of the treaty power
The Berubari principle was refined in Maganbhai Ishwarbhai Patel v. Union of India, AIR 1969 SC 783 (also reported (1970) 3 SCC 400), arising from the boundary dispute over the Rann of Kutch. An international tribunal's award of 19 February 1968 had allotted parts of the Rann to Pakistan, and petitioners argued that giving effect to the award amounted to cession of Indian territory requiring a constitutional amendment under Berubari.
The Supreme Court drew a crucial distinction between the cession of territory and the settlement of a disputed or uncertain boundary. Where the boundary was genuinely uncertain, ascertaining and demarcating it-even by an international tribunal whose award the executive then implemented-was not cession and could be carried out by executive action without amending the Constitution. Only where a clear case of giving away admittedly Indian territory arose would Article 368 be engaged. The Court also clarified the relationship between the treaty-making power and domestic law: the executive may make treaties, but a treaty does not by itself alter municipal law; legislation is required where rights of citizens or the law of the land are affected. Together, Berubari and Maganbhai form the bedrock of the Indian law on territory and remain frequently examined.
From dominion to republic: the constitutional transition
Independence in 1947 produced a dominion, not yet a republic. Between 15 August 1947 and 26 January 1950 India was governed under the Government of India Act, 1935 as adapted by the Indian Independence Act, 1947, with the Constituent Assembly-originally convened under the Cabinet Mission scheme-doubling as both constitution-maker and interim legislature. The Assembly, chaired by Dr. Rajendra Prasad with Dr. B. R. Ambedkar leading the Drafting Committee, completed the Constitution on 26 November 1949 and brought it into force on 26 January 1950.
The first decisions of the new Supreme Court grew directly out of the social legislation that partition and independence had set in motion. In State of Madras v. Champakam Dorairajan, AIR 1951 SC 226, the Court struck down communal reservation as violating Article 29(2) and held that the Directive Principles must run subsidiary to Fundamental Rights-prompting the Constitution (First Amendment) Act, 1951. In State of Bihar v. Maharajadhiraja Sir Kameshwar Singh, AIR 1952 SC 252, the Court grappled with the zamindari-abolition laws that the First Amendment had shielded through Articles 31A, 31B and the Ninth Schedule. These early cases show how the social aspirations of the independence movement were translated into-and contested within-the new constitutional framework.
Aftermath: reorganisation and unfinished partitions
Partition along religious lines was followed within a decade by a reorganisation of internal boundaries along linguistic lines. Agitation in the Telugu-speaking areas-marked by the death of Potti Sriramulu-led to the creation of Andhra in 1953 and to the States Reorganisation Act, 1956, enacted on the recommendation of the Fazl Ali Commission. The Act redrew the political map of the Union under Article 3, the very provision that Berubari held could not be used to give away national territory.
Some consequences of 1947 remained legally live for far longer. The exchange of enclaves contemplated by the Nehru-Noon Agreement was only completed by the Land Boundary Agreement with Bangladesh, given effect by the Constitution (One Hundredth Amendment) Act, 2015-a direct descendant of the Berubari litigation. The Rann of Kutch and the line in Jammu and Kashmir continue to generate disputes. For aspirants the lesson is that partition is not a closed historical episode but a continuing source of constitutional doctrine, examined repeatedly alongside the federal structure topics covered across our Indian History for Judiciary hub.
Exam pointers and frequently tested propositions
For rapid revision, fix these load-bearing facts. The Indian Independence Act, 1947 received assent on 18 July 1947 and created two dominions from 15 August 1947; Section 7 lapsed paramountcy over the princely states. The Mountbatten Plan is dated 3 June 1947. The Radcliffe Award was published on 17 August 1947, after independence. The Cabinet Mission (16 May 1946) rejected a sovereign Pakistan and proposed a three-tier federation that collapsed over the grouping clause.
On the case law, remember the chain: Berubari (AIR 1960 SC 845) holds that cession of territory needs a constitutional amendment under Article 368 and that the Preamble is not a source of power; Maganbhai (AIR 1969 SC 783) distinguishes cession from boundary settlement and clarifies that treaties do not automatically alter municipal law. On citizenship, Articles 5-7 turn on the dates 1 March 1947 (Article 7 migration) and 19 July 1948 (the registration cut-off in Article 6). On the integration of states, the operative instrument was the Instrument of Accession ceding defence, external affairs and communications; Junagadh, Hyderabad (Operation Polo, 1948) and Jammu and Kashmir (accession 26 October 1947) are the three hard cases most often examined.
Frequently asked questions
What did the Indian Independence Act, 1947 actually do?
It received Royal Assent on 18 July 1947 and, with effect from 15 August 1947, created two independent dominions-India and Pakistan. Section 2 defined their territories, Section 5 provided a Governor-General for each, Section 6 gave each legislature full law-making power free of UK paramountcy, Section 7 lapsed British suzerainty over the princely states, and Section 8 adapted the Government of India Act, 1935 as the interim constitution.
Why was the Radcliffe Award published only on 17 August 1947, after independence?
Sir Cyril Radcliffe finalised the boundary before 15 August, but Mountbatten chose to delay publication until 17 August so that the British would not be administering the violence its announcement was expected to trigger. The Award split Punjab and Bengal, giving the western part of Punjab and eastern Bengal to Pakistan.
What is the constitutional rule on ceding Indian territory to a foreign state?
In In re Berubari Union, AIR 1960 SC 845, the Supreme Court held that cession of Indian territory cannot be done by executive action or under Article 3 (which only allows altering the boundaries of States within the Union); it requires a constitutional amendment under Article 368 because it alters the territory of India in the First Schedule.
How does Maganbhai v. Union of India qualify the Berubari principle?
In Maganbhai Ishwarbhai Patel v. Union of India, AIR 1969 SC 783, the Court distinguished cession of territory from the settlement of a genuinely uncertain boundary. Demarcating an uncertain boundary-as with the Rann of Kutch tribunal award-is not cession and can be implemented by executive action without amending the Constitution.
How did the princely states join India after 1947?
Section 7 of the Indian Independence Act lapsed British paramountcy, leaving rulers free to accede or stay out. Sardar Patel and V. P. Menon secured accession through the Instrument of Accession, by which a ruler ceded only defence, external affairs and communications. Junagadh (plebiscite, 1948), Hyderabad (Operation Polo, 1948) and Jammu and Kashmir (accession on 26 October 1947) were the difficult cases.
Which constitutional articles govern citizenship arising from partition?
Articles 5 to 11. Article 5 covers domicile-based citizenship at commencement; Article 6 covers migrants from Pakistan, turning on the cut-off of 19 July 1948; Article 7 deems persons who migrated to Pakistan after 1 March 1947 not to be citizens unless they returned under a resettlement permit; Articles 8-11 deal with persons of Indian origin abroad and reserve further power to Parliament, exercised through the Citizenship Act, 1955.