supply and installation of air conditioning machine at the esi- ms room, room no-33, room no-27, department of chemistry and ct-204, department of chemical technology, rajabazar science college, cu, kolkata-9. , supply , installation & commissioning of voltas/ carrier / daikin or equivalent machine .75 ton 3 star 100% cu split ac machine including necessary cu insulation pipe , pvc drain pipe as per site condition (approved by the eic) & necessary civil work.(room no-27) , supply , installation & commissioning of voltas/ carrier / daikin or equivalent machine 1.5 ton 3 star 100% cu split ac machine including necessary cu insulation pipe , pvc drain pipe as per site condition (approved by the eic) & necessary civil work (esi ms room-2 nos & room no-33-1 no) , supply , installation & commissioning of voltas/ carrier / daikin or equivalent machine 1.5 ton 3 star 100% cu window ac machine including necessary cu insulation pipe , pvc drain pipe as per site condition (approved by the eic) & necessary civil work (ct-204) , less : buy back of split ac machine (value deduct) , less: buy back of window ac machine (value deduct)