augmentation of existing distributed control system ( dcs ) , augmentation of existing of distributed control system ( dcs ) , distributed control system ( dcs ) design , engineering , manufacture , procurement , supply of hardware & software & buy/outs , fat inspection of dcs as per approved qap , integration with existing dcs including hardware , software & cables , packing , marking , forwarding , transportation including mandatory spares , commissioning spares & required tools & tackles ( if any ) , documentation etc . installation & erection , system power on , loop checking , pre/commissioning & commissioning activities of system , site acceptance test ( sat ) , support during plant startup and handing over of expanded dcs to purchaser . installation & commissioningof complete dcs system on turnkey basis