Kolkata Metro Rail Corporation Limited's International Tender for Detailed Design, Detailed Engineering, Prototype, Manufacture, Supply, Delivery & Storage at site, Installation, Testing & Commissioning (Including Integrated Testing & Commissioning), Training of Personnel, Demonstration of Performance of System/Equipment, Annual Maintenance Contract of Lift & Escalator System (L & E) of Four Underground Stations for the Kolkata Metro East-West Line Project (Phase-II)