SML KLK SPL (04505) runs from Shimla to Kalka. It departs from Simla station (SML) at 14:15 and arrives at Kalka station (KLK) at 20:10. SML KLK SPL takes 0 minute to cover the distance of 94 km between Shimla and Kalka. It is a non-superfast train. The average speed of this train is kmph. It has classes Executive Vistadome AC (EV) and First Class (FC). This train runs daily. Final chart for SML KLK SPL is prepared at Shimla usually 3-4 hours before train departure time.

Kalka is a town in the Panchkula district of Haryana, India. The name of this town is derived from the goddess Kali. The town is situated in the foothills of the Himalayas and is a gateway to the neighbouring state of Himachal Pradesh. Kalka railway station is the northern terminal of the Delhi-Kalka line of Northern Railway, Indian Rail (Station code KLK) serving as terminal station for broad gauge line (towards Chandigarh) and narrow gauge line (towards Shimla). The Kalka Shimla Railway features on the UNESCO's World Heritage sites list as the Mountain Railways of India. The Kalka-Shimla Railway is a 2 ft 6 in narrow-gauge railway in North India travelling along a mostly mountainous route from Kalka to Shimla. It is known for dramatic views of the hills and surrounding villages.