India, Sept. 10 -- In a major boost to the railway infrastructure, the Union Government on Wednesday announced four-laning of seven high-density railway corridors and quadrupling the existing network, equating it to the project Golden Quadrilateral envisioned by Atal Bihari Vajpayee Government for the road infrastructure of the country.

The Indian Railways seven high-density network cleared by the Union Cabinet are identified as Delhi-Howrah, Howrah-Mumbai, Delhi-Mumbai, Delhi-Guwahati, Delhi-Chennai, Howrah-Chennai and Mumbai-Chennai routes.

Union Minister of Railway, Ashwini Vaishnaw, said several key railway projects are part of the complete overhaul and modernisation of the railways. "In today's Cabinet meeting, there are some very ...