India, May 19 -- In a major boost to Chennai's suburban rail network, Indian Railways has approved the Arakkonam-Chengalpattu doubling project at an estimated cost of Rs.993 crore.

The 68-km project, under Southern Railway, aims to enhance capacity on one of the busiest sections of the Chennai suburban rail system. Officials said the route is a crucial part of the Chennai circular rail network connecting Chennai Beach, Tambaram, Chengalpattu, and Arakkonam.

According to the Ministry of Railways, the doubling of the line will significantly reduce congestion, improve train punctuality, and allow for increased frequency of suburban services. The corridor is currently operating at near full capacity, with traffic expected to rise further in...