Arakkonam Junction railway station is an NSG–2 category Indian railway station in Chennai railway division of Southern Railway zone. It is located in Ranipet district of Tamil Nadu. It is one of the oldest railway stations in India, located on the first railway line in South India. It is located on the Guntakal–Chennai Egmore section of Mumbai–Chennai line.

Southern Railway (SR) is one of the eighteen zones of Indian Railways. It is headquartered at Chennai and operates across the states of Tamil Nadu, Kerala, Andhra Pradesh and the union territory of Puducherry. The origin of the Southern Railway can be traced back to the Madras Railway formed in 1845. Southern Railway was created on 14 April 1951 by merging three state railways, namely, the Madras and Southern Mahratta Railway, the South Indian Railway Company, and the Mysore State Railway. Southern Railway maintains about 5,081 km (3,157 mi) of railway lines and operates 727 railway stations.