The South Central Railway (SCR) has sent a DPR for the 577-km-long Secunderabad-Nagpur corridor to the railway board for detailed review and further approval. As reported, the railway board has sent the DPR to the Research Designs and Standardisation Organisation, Lucknow. Contact: Gajanan Mallya, General Manager, South Central Railway.Address: 3rd Floor, Railnilayam, Secunderabad-500 071, Andhra Pradesh.Tel: 040-2782 2874. E-mail: gm@scr.railnet.gov.in Website: www.scr.indianrailways.gov.in