The Boundary Commissions of 1947, popularly known as the Radcliffe Commissions, were constituted under the provisions of the Indian Independence Act, 1947. Their core mandate was to demarcate the international borders between India and the newly created dominion of Pakistan (which included East Pakistan, now Bangladesh). The task involved dividing two major provinces based on religious demographics and other contiguous factors: Bengal and Punjab.
Composition of the Commissions
To ensure political representation, two separate boundary commissions were formed—one for Punjab and one for Bengal. Both commissions were chaired by Sir Cyril Radcliffe, a British lawyer who had never visited India prior to this appointment and possessed no specialized knowledge of Indian cartography or demographics.
| Commission | Chairman | Indian National Congress Members | Muslim League Members |
| Punjab Boundary Commission | Sir Cyril Radcliffe | Justice Mehr Chand Mahajan, Justice Teja Singh | Justice Din Mohamed, Justice Muhammad Munir |
| Bengal Boundary Commission | Sir Cyril Radcliffe | Justice C.C. Biswas, Justice B.K. Mukherjee | Justice Abu Saleh Mohamed Akram, Justice S.A. Rahman |
Terms of Reference and Demarcation Criteria
Primary Demarcation Rules
The commissions were instructed to demarcate the boundaries of the two parts of Punjab and Bengal on the basis of ascertaining the contiguous majority areas of Muslims and non-Muslims.
The “Other Factors” Clause
Crucially, the terms of reference included a vague clause allowing the commissions to take “other factors” into account. This provided judicial discretion to alter straight demographic lines based on practical administrative, economic, and infrastructural realities. These factors included:
- Infrastructural Continuity: Railway lines, highways, and communication networks.
- Irrigation Systems: Canals, headworks, and river basins (vital for agricultural regions in Punjab).
- Economic Units: Ensuring major industrial or agricultural hinterlands were not entirely severed from their natural urban processing centers or ports.
- Sacred/Historical Sites: Religious places of significance to Sikhs, Hindus, and Muslims.
The Demarcation Process and Operational Challenges
Time Constraints and Secretive Deliberations
The commissions were given less than six weeks to complete one of the most complex geopolitical partitions in modern history. Appointed in early July 1947, the awards had to be ready before August 15, 1947. Because the Hindu and Muslim nominees on both commissions routinely deadlocked on almost every territorial dispute, the final decisions rested entirely on the casting vote of the Chairman, Cyril Radcliffe.
Delayed Publication of the Awards
Although the Radcliffe Awards were finalized by August 12, 1947, Lord Louis Mountbatten (the last Viceroy of India) chose to delay their public announcement until August 17, 1947. This administrative delay meant that when India and Pakistan celebrated their independence on August 14 and 15, millions of citizens living in border districts did not officially know which country they belonged to.
Anomalies, Disputes, and Anomalous Territorial Awards
The hurried nature of the border demarcation led to significant geographical, social, and economic disruptions, resulting in major long-term geopolitical flashpoints.
The Punjab Anomalies
- Gurdaspur District: Radcliffe allocated three out of four tehsils (Gurdaspur, Batala, and Pathankot) of the Muslim-majority Gurdaspur district to India. This decision was highly strategic as it provided India with its only direct land access to the princely state of Jammu and Kashmir. Only the Shakargarh tehsil was awarded to Pakistan.
- Firozpur Headworks: Initially slated to go to Pakistan due to demographic contiguous patterns, Firozpur was awarded to India in the final draft. This secured vital canal headworks for the irrigation of Bikaner state.
The Bengal and Assam Anomalies
- Chittagong Hill Tracts (CHT): Despite having a 97% non-Muslim population (primarily Buddhist tribes), the CHT was awarded to East Pakistan because its economic lifeline was entirely tied to the port city of Chittagong.
- Khulna and Murshidabad Swap: Khulna (a Hindu-majority district) was awarded to East Pakistan, while Murshidabad (a Muslim-majority district containing the headwaters of the Hooghly River) was awarded to India to secure the navigation channels of the Calcutta Port.
- Sylhet Referendum: Under the provisions of the Indian Independence Act, a referendum was held in the Sylhet district of Assam in July 1947. The population voted to join East Bengal, and the Boundary Commission subsequently demarcated the new boundary, transferring the bulk of Sylhet to East Pakistan, except for the Barak Valley’s Karimganj sub-division.
Historical Trivia for UPSC Prelims
- The Precedent Commission: Prior to the 1947 Radcliffe Commission, the concept of a boundary commission was utilized during the Partition of Bengal in 1905 under Lord Curzon, though that line was purely provincial and administrative rather than an international frontier.
- Destruction of Maps: Sir Cyril Radcliffe refused his salary of 40,000 rupees, destroyed all his personal notes, and left India on August 15, 1947, never to return, due to his horror at the administrative chaos and violence that followed the border announcement.
- Enclaves (Chhitmahals): The hurried demarcation created 111 Indian enclaves inside Bangladesh and 51 Bangladeshi enclaves inside India. This cartographic anomaly was finally resolved decades later via the 100th Constitutional Amendment Act of India (2015), which implemented the Land Boundary Agreement (LBA) originally signed in 1974.