bids are invited for annual maintenance service - desktops, laptops and peripherals - desktop pc; any make and any model , annual maintenance service - desktops, laptops and peripherals - all in one pc; any make and any model , annual maintenance service - desktops, laptops and peripherals - laptop; any make and any model , annual maintenance service - desktops, laptops and peripherals - high end laptop; any make and any model , annual maintenance service - desktops, laptops and peripherals - printer ( monochrome , laser , composite cartridge ) ; any make and any model , annual maintenance service - desktops, laptops and peripherals - mono laserjet mfp; any make and any model , annual maintenance service - desktops, laptops and peripherals - a3 mono laserjet mfp; any make and any model , annual maintenance service - desktops, laptops and peripherals - color laserjet; any make and any model , annual maintenance service - desktops, laptops and peripherals - color laserjet mfp; any make and any model , annual maintenance service - desktops, laptops and peripherals - a3 color laserjet mfp; any make and any model , annual maintenance service - desktops, laptops and peripherals - ups ( online 20 kva ) ; any make and any model , annual maintenance service - desktops, laptops and peripherals - scanner; any make and any model , annual maintenance service - video / data wall - data wall display; panasonic; neither oem nor asp , annual maintenance service -data center assets - compute; computer-servers; oem authorised service provider , annual maintenance service -data center assets - network devices; managed switch with 24 port; oem authorised service provider , annual maintenance service -data center assets - network devices; unmanaged switch with 24 port; oem authorised service provider , annual maintenance service -data center assets - security systems devices; cctv surveillance; neither oem nor asp , annual maintenance service - data center assets - security systems devices; nvr with hdd; neither oem nor asp , annual maintenance service -data center assets - security systems devices; biometric door access system; neither oem nor asp , annual maintenance service - audio conferencing system - projector; any make and any model; neither oem nor asp , annual maintenance service-sip based ippbx - epabx; any make and any model; neither oem nor asp