Indian Railways: The Ministry of Railways has launched a series of works and surveys aimed at enhancing speed and expanding line capacity of two of India’s busiest rail corridors Delhi-Mumbai and Delhi-Howrah. This will also improve their operational efficiency. The work on the Delhi-Mumbai corridor which stretches over 1386 kilometres has been sanctioned and is in advance stage. This information was shared by Railways Minister Ashwini Vaishnaw in a written reply to a question in the Lok Sabha. Vaishnaw said that currently 196 km of this route have four rail lines and construction of the third and fourth lines has been taken up between Dahanu Road and Virar covering 64 km adding that a survey has been sanctioned to extend this expansion for the third and fourth lines across the remaining 1126 km. Additionally 1404 km of the Western Dedicated Freight Corridor (DFC) have been commissioned and work is underway for the final 102-km segment. Apart from that the Railways is also developing the 508-km Mumbai-Ahmedabad High-Speed Rail project. Likewise the Delhi-Howrah corridor which spans 1450 km is undergoing a speed upgrade to 160 kmph. The corridor currently includes a mix of double triple and quadruple tracks out of which 194 km are four-line sections 312 km are triple-lined and the remaining 944 km are double-lined. Work has been taken up and several capacity augmentation projects have been sanctioned on the Delhi-Howrah corridor which include the multi-tracking of the Son Nagar to Andal section covering 375 km. it also incorporates the construction of a third line between Aligarh and Daud Khan spanning 18 km and another third line between Mughalsarai and Allahabad extending 150 km. Additionally a fifth line is being built between Kalipahari and Bakhtarnagar for 18 km while a fourth line is under construction between Saktigarh and Chandanpur covering 43 km. The Nimcha up avoiding line is also being extended by 9.42 km. In addition surveys have been approved for the construction of 480 km of third lines 96 km of fourth lines and 151 km of fifth lines said Vaishnaw.