Shares of Rail Vikas Nigam Ltd (RVNL) will be in focus on Tuesday, September 23, after the company emerged as the lowest bidder for a Southern Railway project. The Rs 145.35 crore order covers the design, supply, erection, testing, and commissioning of traction substations, SCADA systems, and related equipment for the Jolarpettai–Salem section, to be completed within 540 days.