Heavy rains damage Himachal Pradesh, including Kalka-Shimla railway, a UNESCO site

Landslide erases part of track between Summer Hill and Jutogh stations

Over 150 disruptions on railway due to continuous monsoon flooding

Solan-Shimla stretch briefly opens, closes again after recent floods

The iconic train passes through 102 tunnels, 919 curves, 880 bridges on scenic 96.6 km route

Authorities aim to restore route in a month if rains ease