bids are invited for annual maintenance service - desktops, laptops and peripherals - desktop pc; hp , annual maintenance service - desktops, laptops and peripherals - desktop pc; dell , annual maintenance service - desktops, laptops and peripherals - desktop pc; acer , annual maintenance service - desktops, laptops and peripherals - desktop pc; lenovo , annual maintenance service - desktops, laptops and peripherals - desktop pc; hcl , annual maintenance service - desktops, laptops and peripherals - desktop pc; assembled , annual maintenance service - desktops, laptops and peripherals - laptop; hp , annual maintenance service - desktops, laptops and peripherals - laptop; dell , annual maintenance service - desktops, laptops and peripherals - laptop; acer , annual maintenance service - desktops, laptops and peripherals - work station; dell , annual maintenance service - desktops, laptops and peripherals - work station; hp , annual maintenance service - desktops, laptops and peripherals - printer ( ink tank , mono & colour , lowe range ) ; epson , annual maintenance service - desktops, laptops and peripherals - printer ( monochrome , laser , composite cartridge ) ; hp , annual maintenance service - desktops, laptops and peripherals - printer ( monochrome , laser , composite cartridge ) ; dell , annual maintenance service - desktops, laptops and peripherals - printer ( monochrome , laser , composite cartridge ) ; canon , annual maintenance service - desktops, laptops and peripherals - printer ( monochrome , laser , composite cartridge ) ; samsung , annual maintenance service - desktops, laptops and peripherals - printer ( monochrome , laser , separate drum and tonner ) ; brother , annual maintenance service - desktops, laptops and peripherals - dot matrix printer mid range speed; lipi , annual maintenance service - desktops, laptops and peripherals - multifunction printer ( monochrome , laser , composite cartridge, lower range; hp , annual maintenance service - desktops, laptops and peripherals - multifunction printer ( monochrome , laser , separate drum & tonner, lower range ) ; brother , annual maintenance service - desktops, laptops and peripherals - multifunction printer ( ink tank , mono & colour , lowe range ) ; epson , annual maintenance service - desktops, laptops and peripherals - multifunction printer ( ink jet , mono and colour, lower multifunction printer ( ink jet , mono and colour, lower range ) ; hp , annual maintenance service - desktops, laptops and peripherals - ups online 1kva; apc , annual maintenance service - desktops, laptops and peripherals - scanner ( flat bed ) ; hp , annual maintenance service - desktops, laptops and peripherals - scanner ( flat bed ) ; epson , annual maintenance service - desktops, laptops and peripherals - scanner; canon , annual maintenance service - desktops, laptops and peripherals - ups ( offline 500-550 va ) ; apc , annual maintenance service - desktops, laptops and peripherals - ups ( offline 500-550 va ) ; zebronics , annual maintenance service - desktops, laptops and peripherals - ups ( offline 500-550 va ) ; uniline , annual maintenance service - desktops, laptops and peripherals - ups ( offline 500-550 va ) ; casio , annual maintenance service - desktops, laptops and peripherals - ups ( offline 600-650 va ) ; apc , annual maintenance service - desktops, laptops and peripherals - ups ( offline 600-650 va ) ; zebronics , annual maintenance service - desktops, laptops and peripherals - ups ( offline 600-650 va ) ; digitell , annual maintenance service - desktops, laptops and peripherals - ups ( offline 600-650 va ) ; uniline , annual maintenance service - desktops, laptops and peripherals - ups ( offline 750-800 va ) ; uniline , annual maintenance service - desktops, laptops and peripherals - ups ( offline 1 kva ) ; apc , annual maintenance service - desktops, laptops and peripherals - ups ( offline 1 kva ) ; frontek , annual maintenance service - audio conferencing system - projector; sony; neither oem nor asp