South Central Railway invites E-Tenders (No. GTL-EM-18-2026-27 dated June 15, 2026) for replacing overhead (OH) lines with LTUG cables in buildings and colonies under the Guntakal division, valued at Rs. 5,85,44,256.42; bids must be uploaded on ireps.gov.in by July 10, 2026, at 15:00 hrs, or follow updates via @SCRailwayIndia.