biennial maintenance contract for all departmental jobs under jurisdiction of em-iph dept . , btps , wbpdcl , biennial maintenance contract for all departmental maintenance works , like :- maintenance of generator & auxiliaries , breakers , motors , modules , illuminations system and all other unit electrical auxiliaries ( under emiph dept . ) and all related lifting & shifting works cost including man-days of 13 listed , 06 non listed & 1 no category contractor worker including ot and other benefits , annual cost of ppe ( on reimbursement basis at actual ) , tools & tackles and profit including service & administrative charges . , ppe cost ( reimbursable ) , cost of tools &tackels , cost of liveries , gst