RVNL emerges as L1 bidder for upgradation of electric traction system of Rajahmundry-Duvvada, Samalkot-Kakinada Port rail sections in Andhra Pradesh June 30, 2025 | Awarded, Project Updates Rail Vikas Nigam Limited (RVNL) has emerged as the lowest (L1) bidder for design, supply, erection…. This content is restricted.