bids are invited for operation and maintenance power house / power plant - overhauling of c and i equipment- control system pertaining to atrs, hp-bypass and aux- prds system---1 dismantling, cleaning, servicing, checking, recalibration and re commissioning of recorders including redressing and tightening of cables connections.2 dismantling, cleaning, servicing, checking, testing, recalibration and re commissioning of pressure transmitters.3 dismantling, cleaning, servicing, checking, testing, recalibration and re commissioning of position transmitters.4 dismantling, cleaning, servicing, checking, testing, recalibration and re commissioning of relative shaft vibration pickup.5 dismantling, cleaning, servicing, checking, testing, recalibration and re commissioning of bearing shell vibration pickup.6 dismantling, cleaning, servicing, checking, testing, recalibration and re commissioning of pick for axial shift along with their electronic module.7 dismantling, cleaning, servicing, checking, testing, recalibration and re commissioning of pick for differential expansion along with their electronic modules.8 dismantling, cleaning, servicing, checking, testing, recalibration and re commissioning of pick for over all expansion along with their electronic modules.