Chennai, Oct 23 (PTI) The Ministry of Railways has approved the laying of a fourth line between Tambaram and Chengalpattu at an estimated cost of Rs 757.18 crore, aimed at boosting connectivity in the state, the Southern Railway said.

The Tambaram-Chengalpattu section is currently a three-line stretch on the Chennai Beach - Villupuram - Tiruchirappalli - Kanyakumari sections, serving suburban, long-distance trains.

Due to the heavy utilisation of suburban, express and freight traffic trains, the section experiences frequent congestion, impacting punctuality and capacity expansion, the Southern Railway said in a release here.

Setting up a fourth line would greatly benefit commuters bound for southern districts, "easing congestion and enabling smoother suburban train operations there by i

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