IR approves Upgradation of Electric Traction System for Savalyapuram-Guntur Section Project in Andhra Pradesh September 23, 2026 | Announced/Approved, Electrification, Project Updates Indian Railways (IR) approved the upgradation of electric traction system from 1×25 kV to 2×25 kV for 73 route km (rkm) of Savalyapuram….. This content is restricted.