Indian Railways (IR) has unveiled plans to four-lane its high-density rail network to boost capacity on the country’s busiest corridors and to accommodate rising passenger and freight needs. Railway Minister Ashwini Vaishnaw outlined the initiative in New Delhi, describing a strategic programme that targets seven routes spanning nearly 11,000 km and responsible for about 41 per cent of total railway traffic while covering just 16 per cent of the network. The measure is presented as a capacity enhancement rather than a simple track addition. The corridors selected for the upgrade link major metropolitan and economic centres, including Delhi–Howrah, Howrah–Chennai, Chennai–Mumbai, Mumbai–Delhi, Delhi–Chennai, Mumbai–Howrah and Delhi–Guwahati, and are those with highest traffic density. Under the plan the routes will be developed with four lines to segregate fast passenger movements from slower freight flows, thereby reducing bottlenecks and enabling higher hourly throughput. Officials said the work will prioritise sections where incremental capacity delivers the greatest immediate benefit. The project is positioned within the government’s wider agenda under Prime Minister Narendra Modi to strengthen transport infrastructure, lower logistics costs and promote cleaner mobility across the economy. Authorities highlighted rail’s environmental advantages compared with road haulage and argued that increasing dedicated track capacity can improve punctuality, reduce transit times and lower overall emissions. Funding and detailed phasing were not specified in the statement, which focused on objectives and corridor selection. Implementation will proceed in phases aligned with traffic studies and engineering assessments, with early works focused on the most congested segments to deliver demonstrable gains in a shorter period. The plan will interact with existing electrification and signalling upgrades to maximise the benefits of additional tracks and to support higher speed operations where feasible. Stakeholders said the scheme aims to secure more efficient movement of goods and improved travel experiences for passengers across the busiest trunk routes.