PHASE-II-Corridor-5-Package No- P2C4/GEO-3/RT-01– “Engagement of Geotechnical contractors for “Detailed Geotechnical Investigation by Drilling Bore holes and collecting and testing the samples and submission of Geotechnical reports from RAMACHANDRA HOSPITAL TO POONAMALLEE of Corridor-4 (Total Length = 7.18 KM (CH:19047.000M to CH:25829.790 M) for ELEVATED CPORRIDOR of Phase II -Chennai Metro Rail Limited