Big four-tracking push! Railways to expand on 7 high-density routes – why it matters

 India’s seven high-density railway routes, covering about 11,000 km, are being expanded to four tracks to handle more passenger and freight traffic across the country, Vaishnaw said recently. India’s seven high-density railway routes, covering about 11,000 km, are being expanded to four tracks to handle more passenger and freight traffic across the country, Vaishnaw said recently.