RVNL issues tender for Kolkata Metro Purple Line, India September 2, 2025 | Asia Pacific News, News Rail Vikas Nigam Limited (RVNL) has issued an INR3778.20 million tender for the construction of a 1.37-km-long viaduct and the elevated IIM station on the Purple Line of Kolkata Metro. The project ext... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password