Eastern Railway has its headquarters in Kolkata (formerly Calcutta), one of the oldest railway zones in India.

A turntable is used to rotate locomotives 180 degrees to change their direction without requiring them to travel backward.

The standard spacing between sleepers on broad gauge is 0.8 meters (or approximately 30-32 inches).

Railway stations in India are classified from Category A to F. Category H does not exist in the classification system.

DEMU stands for Diesel Electric Multiple Unit, used for short-distance passenger transport.

Meter Gauge has a standard width of 1000 mm. Broad Gauge is 1676 mm, Narrow Gauge is 762 mm, and 1219 mm is rarely used.

The minimum turning radius for broad gauge tracks is approximately 300 meters to ensure safe operations.

Railway buffers are elastic devices that absorb impact and shock during coupling and uncoupling of coaches.

EMU stands for Electric Multiple Unit, which refers to electric trains that have distributed motor units in multiple cars.

The standard height of railway platforms in India is 750 mm (2 feet 6 inches) from rail level.