RVNL receives LoA for upgradation of electric traction system of Jolarpettai-Salem rail section in Tamil Nadu December 4, 2025 | Awarded, Civil, Electrification, Project Updates Rail Vikas Nigam Limited (RVNL) received the Letter of Acceptance (LoA) for a contract worth Rs 1,453.56 million for design, supply, erection, testing and commissioning…. This content is restricted.