Corrigendum No.1 – TENDER ECV-101 – CMRL –Phase I- Extension – Washermenpet to Wimco Nagar “Construction of elevated viaduct from CH 2900.00 to CH 6151.00 (3.25 km) for standard gauge twin track Metro rail and Three elevated stations- Tondiarpet, Tollgate and Thangal, Architectural, Plumbing, roofing, Signage including design of temporary works (Scaffolding, staging etc.) traffic diversion, utility shifting and all associated works excluding Piles and Pile caps works from Chainage :3320m to Chainage :5308.435 m.