The Kalka-Shimla Railway, also known as the Toy Train, is a narrow-gauge railway line located in the Indian states of Haryana and Himachal Pradesh. It is renowned for its scenic beauty and engineering marvels. Here's a brief history of the Kalka-Shimla Railway: 1. Background: In the 19th century, Shimla became the summer capital of British India, and there was a need for a convenient transportation route between the plains and the hill station. The British decided to construct a railway line to fulfill this requirement. 2. Construction: The construction of the Kalka-Shimla Railway began in 1898 and was completed in 1903. The line was built under the direction of Herbert Septimus Harington, an engineer in the Public Works Department of the colonial government. 3. Engineering Feats: The railway line required several engineering marvels to navigate the challenging mountainous terrain. The track spanned 96 kilometers (60 miles) and involved constructing 864 bridges, 102 tunnels, and numerous viaducts. The line gained recognition for its 103 tunnels, including the famous Barog Tunnel. 4. Gauge: The Kalka-Shimla Railway was built as a 2 ft 6 in (762 mm) narrow-gauge line. The narrow gauge was chosen due to its flexibility in navigating steep slopes and sharp curves. 5. UNESCO World Heritage Status: In 2008, the Kalka-Shimla Railway was inscribed as a UNESCO World Heritage Site under the criteria of being an outstanding example of hill railways. It was recognized for its unique engineering and aesthetic attributes. 6. Importance and Usage: The railway line played a crucial role in the transportation of passengers and goods between the plains and Shimla during the British colonial era. It served as a lifeline for the region, enabling the movement of supplies, agricultural produce, and timber. 7. Modernization: Over the years, the Kalka-Shimla Railway has undergone modernization to improve its operations and services. Diesel locomotives have replaced the steam engines, and the infrastructure has been upgraded to ensure safety and efficiency. 8. Tourism and Heritage: Today, the Kalka-Shimla Railway is a popular tourist attraction. The Toy Train ride offers breathtaking views of the picturesque Himalayan landscape, passing through tunnels, over bridges, and amidst verdant forests. It is an iconic symbol of Shimla's heritage and a major draw for visitors. The Kalka-Shimla Railway stands as a testament to the engineering ingenuity of its time and continues to charm tourists with its scenic beauty and historical significance.