engagement of security personnel armed unarmed guarding government properties properly and lawfully ( 8 hours/day/guard ) in an uninterrupted way ensuring absolute safety and security of the materials under balurghat division phe dte , engagement of security personnel ( armed/unarmed ) deployed by the security agency for guarding government properties properly & lawfully ( 8 hours/day/guard ) in an uninterrupted way ensuring absolute safety and security of the materials within the premises ( divisional store/stock , office , stackyard , govt . premises etc under balurghat division , phed . , un-armed security guard 180 day x 5 no . = 900 manday , armed security guard 180 day x 1 no . = 180 manday , un-armed security supervisor 180 day x 1 no . = 180 manday , add . @ 12 % gst rs . ( as applicable ) , add . @ 1 % cess rs .