Annual Maintenance Service- Desktops, Laptops and Peripherals- Desktop PC; ACER HP HCL, Annual Maintenance Service- Desktops, Laptops and Peripherals- Printer ( Monochrome, Laser, Separate Drum and Tonner ); HP CANON BROTHER, ANNUAL MAINTENANCE SERVICE- VIDEO CONFERENCING SYSTEM- CCTV Camera; night vision cameras; Neither OEM nor ASP