Kalka–Shimla Railway

Listen first. A short whistle, then the slow clack of small wheels on narrow rails. The carriages are low and close together, painted in cream and deep colours, and the windows open onto cool pine air. Somewhere ahead, the line curves out of sight around a hillside. You are standing at the top end of one of the most patient journeys in India: a little railway that spends hours climbing into the Himalayan foothills.

This is the Kalka–Shimla Railway. It runs between the plains town of Kalka and the hill station of Shimla, roughly ninety-six kilometres of track. The train does not race. It winds, loops and doubles back on itself as it gains height. Along the way it climbs around 1,400 metres. Many travellers take five hours or more for a trip a car could do much faster. For the people who ride it, that slowness is the point.

To understand why this line exists, you need to understand Shimla. In the nineteenth century, the British made this ridge the summer capital of their Indian empire. Every year, when the heat on the plains became unbearable, government offices, officials and their families moved up into these hills. The journey was hard. People travelled by cart, by pony and on foot along steep mountain roads. A railway promised something new: a direct, reliable link between the capital's summer home and the rest of the country.

The line opened in 1903, after several years of difficult construction. The builders chose a narrow gauge — the rails sit just seventy-six centimetres apart. That is much narrower than the main lines on the plains. A narrow track allows tighter curves, and tighter curves were essential here. The mountains left no room for long, gentle bends. So the railway follows the shape of the land, hugging the slopes and turning sharply around ridges and gullies.

Here is the first surprise. To reach Shimla, the line passes through more than one hundred tunnels. Some are only a few seconds long. The carriage goes dark, the sound of the wheels grows louder, and then daylight returns. On a long journey, it can feel like the hills are blinking. Passengers often count them, and children sometimes cheer at each one. Most visitors arrive expecting views. Few expect so much of the trip to happen underground.

The longest tunnel sits near the station of Barog, and it comes with a story. Locals tell it this way. The engineer in charge, a man remembered as Colonel Barog, had his crews dig from both sides of the mountain. The two tunnels did not meet. According to the popular tale, he was fined for the error, and in his despair he took his own life near the site. Historians treat parts of this account with caution. But the station still carries his name.

There is a second chapter to the legend. Local tradition says that a holy man from the area, known as Bhalku, helped the British engineers find a better route. He is said to have walked the hills with a stick and pointed out where the tunnels should go. How much of this is history and how much is folklore is hard to say. What is clear is that people in these hills remember Bhalku fondly. Today a small railway museum in Shimla carries his name.

Now look at the bridges. The line crosses hundreds of them, many quite small, over streams and dry gullies. The most memorable are the arch galleries. These are bridges built in several tiers of stone arches, stacked one above the other. From a distance they look like old Roman aqueducts — the long stone water channels the Romans built across valleys. They were built with local stone, and many have carried trains for more than a century with only careful repair.

The second surprise is about recognition. In 2008, UNESCO added the Kalka–Shimla Railway to its World Heritage List. It joined two other hill railways in India, and together they are listed as the Mountain Railways of India. UNESCO protects places it judges to be of outstanding value to all humanity. Here, that value is not a palace or a temple. It is a working railway, still carrying commuters, students and tourists up and down the hills every day.

The stations themselves are worth your attention. Many are small, with low buildings, sloping roofs and neat platforms. Flowers often grow in pots along the edges. Station names are painted in clear lettering, sometimes with the height above sea level written underneath. At Barog, many trains pause long enough for passengers to step out, stretch, and buy tea or a snack. These quiet stops are part of the rhythm of the ride.

As the train climbs, the landscape changes around you. Near Kalka, the air is warm and the hills are low and scrubby. Higher up, the forest thickens. Pine and deodar cedar trees line the slopes. The deodar is a tall Himalayan cedar, and it gives the air a faint, resinous smell. Terraced fields cut into the hillsides, and small villages cling to the ridges. Clouds sometimes drift below the track, filling the valleys like white water.

The railway is also part of daily life here. Locals use it to travel between towns along the route. Railway workers walk the track, check signals and wave the trains through. Vendors meet the carriages at busy stations. Some passengers board with shopping bags, others with school books. For visitors, the train can feel like an attraction. For many people in these hills, it is simply the way to get home.

If you are at Shimla station now, notice how tightly it fits into the slope. The town above you is built in layers, with roads stacked over roofs and steps between them. The station sits on one of those layers, just below the old heart of the hill station. When a train arrives, the platform fills briefly, then empties again into the narrow streets. Within minutes, the place grows quiet once more.

Before you move on, stand still for a moment. Look down the line to where the rails bend out of view. Somewhere beyond that curve are the tunnels, the stone arches and the long descent to the plains. Listen for the next whistle. When it comes, you will hear the same sound travellers have heard here for more than a hundred years — a small train, setting out slowly, into the hills.