Shimla: The Kalka-Shimla track, a world heritage site, was damaged on Monday in the Himachal Pradesh capital owing to the caving in of a portion of the hill following heavy rainfall, an official said here.

According to officials, a major part of the track between Jutogh and Summer Hill railway stations in Shimla was washed away. It hanged down the hill.

The movement of trains between Kandaghat-Shimla has been cancelled. Toy trains, as they are popularly called, run on the century-old Kalka-Shimla rail line. Each train has seven coaches and can accommodate nearly 200 passengers.

The 96-km-long narrow gauge railroad, originally built to ferry Europeans to Shimla, the then summer capital of British India, was chosen by the Unesco as a world heritage site in 2008.