annual maintenance of computer and peripherals in the office of the superintending engineer eastern circle phe dte nijalay plot no cn8 secv, salt lake city kolkata 700091- 1 maintenance of desktop pc and related peripherals as per direction all complete 2 maintenance of ups as per direction all complete 3 maintenance of laserjet printer hp as per direction all complete 4 maintenance of laserjet colour printer hp as per direction all complete 5 maintenance of laserjet pro printer hp m403dn as per direction all complete 6 maintenance of laserjet printer brother ( hl-l2321d ) as per direction all complete 7 virus protection for desktop pc ( quick heal security ) 8 refilling / recharge of laserjet cartridge with all complete ( canon / hp / brothers ) 9 supply of new hp 12a black cartridge 10 supply of new hp cf 228xc cartridge for hp laserjet pro m403 dn 11 supply of new brother dr 2365 black cartridge for ( hl-l2321d ) 12 supply new of brother dr 2365 black cartridge drum for ( hl-l2321d ) 13 supply of new hp 88a black cartridge 14 supply of hp new colour cartridge ( c+y+m ) ( 204a ) ( 1 set= 3 colour ) 15 supply of hp new colour black cartridge ( b ) ( 204a ) ( 1 set= 1 colour ) 16 supply of accessories & peripherals ( including logic card / motherboad / processor / hard disk / ssd / ram / smps / cabinet and cables )