tender for annual maintenance service - desktops, laptops and peripherals - all in one pc; acer , annual maintenance service - desktops, laptops and peripherals - work station; hp, dell , annual maintenance service - desktops, laptops and peripherals - laptop; hp, acer, asus, dell,compaq , annual maintenance service - desktops, laptops and peripherals - desktop pc; hp, dell, acer, lenovo, frontech, hcl,assembled , annual maintenance service - desktops, laptops and peripherals - scanner ( flat bed); epson, canon , annual maintenance service - desktops, laptops and peripherals - scanner; canon , annual maintenance service - desktops, laptops and peripherals - ups (online 2 kva); apc , annual maintenance service - desktops, laptops and peripherals - ups (offline 500-550 va); apc, zebronics, uniline , annual maintenance service - desktops, laptops and peripherals - ups (offline 600-650 va); apc, zebronics, microtek, uniline, digital , annual maintenance service - desktops, laptops and peripherals - ups( offline 1 kva); apc,eaton, frontech , annual maintenance service - desktops, laptops and peripherals - multifunction printer (monochrome , laser , composite cartridge, lower range; hp, brother , annual maintenance service - desktops, laptops and peripherals - multifunction printer ( monochrome , laser , separate drum & tonner, lower range); brother, printmark , annual maintenance service - desktops, laptops and peripherals - printer (monochrome , laser , composite cartridge ); hp, brother,canon , annual maintenance service - desktops, laptops and peripherals - printer ( monochrome , laser , separate drum and tonner ); hp, brother,canon, samsung , annual maintenance service - desktops, laptops and peripherals - projector, projector screen; benq, sony , annual maintenance service - desktops, laptops and peripherals - multifunction printer ( ink tank , mono & colour , lowe range ); epson