In the summer of 1947 a London barrister named Cyril Radcliffe, who had never set foot in India, was given five weeks and outdated census tables to draw the border for two new countries; he left before the line was even made public, and never went back

Cyril Radcliffe spent five weeks in the summer of 1947 deciding where the border between two new countries would run, working from census figures more than a decade old and district maps that were sometimes simply wrong. What he had never spent, before that summer, was a single day in the region he was dividing.

Who was the man handed this job?

Radcliffe was a London barrister, not a diplomat, a surveyor, or a soldier, and that absence of qualification was the qualification. Lord Mountbatten, the last British viceroy, wanted a chairman with no history in India and no stake in the outcome, someone neither the Congress nor the Muslim League could accuse of favoring the other side. Radcliffe fit. He had never set foot in the subcontinent and knew almost no one there.

He landed in Delhi on July 8, 1947. Independence for both new countries was already fixed for the middle of August. That left five weeks to draw two borders through some of the most densely farmed, densely populated land on earth.

What was he actually deciding?

Radcliffe chaired two Boundary Commissions, one for Punjab and one for Bengal, each seated with four Indian judges alongside his single vote: two nominated by the Indian National Congress, two by the Muslim League. The judges deadlocked on almost every question that mattered, which threw the real decisions back onto Radcliffe alone.

His brief was to divide roughly 175,000 square miles and 88 million people along religious lines, using the 1941 census and maps that hadn't kept pace with a decade of population movement. He worked mostly out of a bungalow in Delhi, rarely left it, and consulted a small secretariat rather than anyone with deep local knowledge of either province.

Why was the line kept secret past independence?

Radcliffe finished his awards around August 12 or 13. India became independent on August 15, Pakistan the day before. The border itself stayed locked away until August 17 — two days after Delhi's ceremonies, three after Karachi's.

The delay was not an accident. Mountbatten wanted the new governments, not the departing British administration, holding the map when the anger over it arrived. Publishing during independence week risked turning the celebrations into a referendum on where the line actually fell.

It worked, in the narrowest sense: the ceremonies went ahead undisturbed. What followed them did not go nearly so smoothly.

Why did Gurdaspur end up in India?

The single most contested call was a Muslim-majority district called Gurdaspur, in Punjab, which by population alone would have gone to Pakistan. Radcliffe awarded most of it to India instead, citing the district's shared canal network with territory he had already placed on the Indian side.

Historians researching the papers since have generally concluded that Mountbatten leaned on that particular decision. Gurdaspur carried the only road into the princely state of Kashmir (whose ruler had not yet chosen a side that August), and its contested accession to India that autumn helped start the first Kashmir war. A dispute over canal headworks ended up settling a border question that outlived Radcliffe by decades.

How many people crossed the new line?

Once the map became public, the largest peacetime migration on record began within days. Hindus and Sikhs moved east into India; Muslims moved west into Pakistan or east into what was then East Pakistan. Estimates of how many people crossed range from about 10 million to 20 million, most of it on foot or crammed onto refugee trains.

Nobody has ever agreed on how many died. British-era estimates put the toll near 200,000. Most historians now cite figures closer to 500,000. A minority push the number as high as 2 million, and the gap between those numbers has never closed.

That range is the honest answer, not a placeholder for a truer number still to be found. Nobody was counting the dead as the killing spread, and it spread faster than any government on either side could track.

Why did Bengal split twice?

Punjab's partition held. Bengal's did not. East Bengal became East Pakistan in 1947, but it shared little with West Pakistan besides religion: a thousand miles of Indian territory sat between the two halves, and West Pakistan's government spoke Urdu to a population that spoke Bengali and increasingly resented being governed from the other side of the country.

A military crackdown by the Pakistani army in March 1971 triggered a war, Indian military intervention that December, and the birth of Bangladesh — twenty-four years after Radcliffe first drew a line through the province that would eventually split twice.

Where the line stands now

The Radcliffe Line is still the working border between India and Pakistan, fenced and floodlit along most of its length. At the Wagah-Attari crossing near Amritsar, soldiers from both armies still stage a nightly flag-lowering ceremony for tourists who line up on bleachers on either side to watch. Kashmir, which fell outside Radcliffe's mandate entirely because it was a princely state rather than a British province, remains split by a separate and still-contested line of its own.

Radcliffe never spoke publicly about his line again after he left. He refused the roughly £2,000 fee he was owed. He burned his working papers before flying out of Delhi. The night before independence, he wrote to his stepson that he expected "roughly 80 million people with a grievance" to come looking for him; he said plainly that he did not want them to find him. He died in 1977, and his obituaries gave only a few paragraphs to the five weeks in 1947 that outlasted nearly everything else he did in a long legal career.

The papers he tried to destroy are gone. The line he drew from them is not, and every generation living along it since has had to decide again what to do with a border nobody who lives there chose.

Sources

• Wikipedia, "Radcliffe Line," for the commission's composition, the timeline from Radcliffe's arrival to publication, and the Gurdaspur dispute
• BusinessToday, "5 weeks, a map: How Cyril Radcliffe carved India & Pakistan with a border that changed millions of lives" (2026)
• ThePrint, "75 years of Radcliffe Line: Published two days after Independence, mass migrations followed" (2022)
• ThePrint, "Pakistan created a Gurdaspur myth for way too long. The truth was very different"
• Al Jazeera, "How were the India-Pakistan partition borders drawn?" (2017)
• Marina Wheeler, The Lost Homestead: My Mother, Partition and the Punjab (2020), reported as the source of Radcliffe's letter to his stepson quoting "roughly 80 million people with a grievance"