Shimla is accessible by both roads and railways. However, I would personally recommend you to go there by trains. From Delhi, you can easily get train to Kalka – the nearest broad gauge to Shimla. It’s about four-hour train journey. After that, taking the mountain train to Shimla is the most preferred and most delightful, for sure, option. Stunning views of surrounding greenery and 103 amazing tunnels during your journey will leave you stunned. To get to Kalka in least possible time, catch Stabadi Express from New Delhi Railway Station.