contract for providing labour and services for mechanized housekeeping , sweeping and cleaning services at both the campuses of csir-indian institute of chemical biology at jadavpur and salt lake , kolkata mechanised sweeping and cleaning by proving man power . , total minimum wages for the workers as per tender: house-keeping supervisor: 2 nos . x rs . 645 = 1 , 290 . 00 house-keeping labour: 27 nos . x rs . 584 = 15 , 768 . 00 . total basic for 29 personnel per day = 17 , 058 . 00 , employer share of provident fund @13 . 00% ( as per existing epf rule ) , employer share of state insurance/esic @3 . 25% ( as per existing esic rule ) , bonus @ rs . 7000/- per year i . e . rs . 583/- per month ( as per existing bonus rule ) , fixed cost for hiring of non-consumable materials & mechinery charges per month for both campuses ( fixed cost for entire period of contract ) including its in-built gst towards supply