Addendum-01 & Pre-bid Replies/Clarifications for Tender No:P2C3/Geo-01/2018 – “Detailed Geotechnical Investigation by Drilling Bore holes and collecting and testing the samples and submission of Geotechnical reports from MADHAVARAM MILK COLONY to PATTALAM of Corridor-3 (Total Length = 8.04 KM (CH:(-95.00) to CH:7947.00))” for UNDER GROUND section of Phase II Chennai Metro Rail Limited.