A village schoolmaster who walked into forbidden Tibet disguised as a pilgrim — and mapped it by counting his own footsteps.
In the 1860s Tibet was shut to Europeans, and the men who tried to enter it were turned back at the passes or killed. The Survey of India wanted the country measured anyway, so Captain T. G. Montgomerie proposed a solution of startling simplicity: send men who would not be noticed. He chose hill traders from Kumaon who already crossed into Tibet each summer, and trained them for two years at Dehradun — in the sextant, the compass, the boiling-point thermometer, and one skill stranger than the rest. They learned to walk a pace so exact it never varied: two thousand steps to the mile, up a scree slope or down a frozen river, for months at a time.
The best of them was Nain Singh Rawat, a schoolmaster from the village of Milam. He counted on a Buddhist rosary cut down from 108 beads to 100 — one bead for every hundred paces — and hid his compass inside a prayer wheel, where his notes rode as rolls of scripture. In the Survey's registers he had no name at all. He was simply "the Pundit", No. 1.
A life measured in paces
The lifeline
1830
Born 21 October at Milam, a Bhotia trading village at ~11,300 ft in Kumaon's Johar valley
1863
Recruited by Capt. T. G. Montgomerie of the Great Trigonometrical Survey; two years' secret training
1866
Reaches Lhasa on 10 January — the first man to fix the forbidden city's true position
1867
Crosses to the Thok Jalung gold fields at ~16,000 ft, the coldest place he had ever known
1874–75
Leh to Lhasa to Assam: ~2,800 km, most of it never before recorded on any map
1895
Dies on the land granted him for the maps he had walked into being
By the numbers
The measure of him
2,000
Paces to the mile — a stride drilled until it never varied, uphill or down
100
Beads on his rosary, cut from the customary 108: one dropped every hundred paces
26,000
Kilometres walked in the Survey's service, by the Himalayan Club's reckoning
1877
Patron's Gold Medal of the Royal Geographical Society, London
What he brought back
The work
1855–57
An apprenticeship in high country — he travels with the Schlagintweit brothers on their Himalayan and Central Asian surveys, and learns what a scientific expedition is.
1863–65
Trained at Dehradun in sextant, compass and boiling-point thermometer — and in the calibrated pace, the rosary pedometer and the hollow prayer wheel that carried his notes.
1866
Three months inside Lhasa, passing as a trader and teaching accounts to keep his cover. Twenty solar and stellar observations fix the latitude of a city Europe had never located.
1866
The Tsangpo route-surveyed for hundreds of kilometres — the first sketch of the great river of Tibet, worked up by Montgomerie into a celebrated map at 16 miles to the inch.
26 Aug 1867
Thok Jalung — he reaches the Tibetan gold fields at some 16,000 ft and describes miners working sunk pits, sheltering below ground against the cold.
1874–75
The great traverse: Leh, across the empty Chang Thang, into Lhasa on 18 November 1874, then east and south over the mountains to Tawang and Assam — reaching Calcutta in March 1875.
After 1875
He teaches the next pundits at the Survey school in Dehradun, passing on a method no instrument could replace.
Anonymous, then named
Recognition
In his working life
The Survey's papers called him only "the Pundit" — or No. 1 — to protect him
Detection in Tibet meant imprisonment or death; he travelled in disguise for years
His findings reached Europe through his British officers' reports and signatures
He came home from the last traverse with his health and eyesight badly worn
Today
The Royal Geographical Society's Patron's Medal, 1877; a gold watch from the geographers of Paris
Made C.I.E. by the Government of India, with a village and a pension
A range south of Pangong Tso carries his name: the Nain Singh Range
India Post issued a commemorative stamp on 27 June 2004
The village that trained him first
Milam, in the Johar valley
Milam stands near the snout of the Milam glacier, where the Gori Ganga begins — a summer settlement of Shauka traders who for centuries drove their flocks over the passes into western Tibet and came back with salt, borax and wool. Nain Singh grew up walking those routes before anyone thought to call it survey work. That was exactly why the Survey wanted him: he had a face, a language and a reason to be on the road to Tibet.
3,450 m
Altitude of Milam, his birthplace beneath the glacier
17,400 ft
Unta Dhura, the pass his people crossed to trade with Tibet
1962
The war that sealed the border and emptied the valley's trade routes
"Nain Singh's observations have added a larger amount of important knowledge to the map of Asia than those of any other living man."
— Colonel Henry Yule, accepting the Royal Geographical Society's Patron's Medal on his behalf, May 1877
