Hiring of "Works Contract" for Revamping of Heating, Ventilation and Air Conditioning (HVAC) System (Design, Supply, Installation, Testing and Commissioning (SITC) of a new VRF-based HVAC system) alongwith Comprehensive Annual Maintenance Contract (CAMC) for HVAC System for period of Three (03) Years after completion of Defects Liability Period (DLP) of one (1) year from the date of successful commissioning and handover.