Tender No: P2C3/GEO-04/2018 – Detailed Geotechnical Investigation by Drilling Bore holes and collecting and testing the samples and submission of Geotechnical reports for Elevated Section from Tharamani Road Junction to Shollinganallur (Total Length 9.60 Km) CH:25813 to CH:35414” in Corridor 3 of Phase- II of Chennai Metro Rail Project”. Extension of Tender Submission Corrigendum No.1