Kalka is a town located in the Himachal Pradesh state of India. It serves as a gateway to the popular hill station of Shimla and is known for its scenic beauty and pleasant climate. The town is situated at the foothills of the Himalayas and is well-connected by road and rail. The Kalka-Shimla Railway, a UNESCO World Heritage Site, runs through Kalka and offers breathtaking views of the surrounding mountains. This narrow-gauge railway is famous for its picturesque journey, making it a popular choice for tourists traveling to Shimla. Kalka also has historical significance, with several colonial-era buildings and temples.