bids are invited for custom bid for services - annual maintenance contract for cathodic protection system of ibfpl india part quote for sor line item 10 1 quarterly tr unit maintenance and monitoring 1 pipeline and 1 underground vessel 2 quarterly pipeline potential mon.. , custom bid for services - sor line item 20 quarterly on/off potential survey of pipeline for approx5 point 2km in india side on-off potential survey to be done in close co-ordination with pipeline cp system maintenance group for bangladesh side , custom bid for services - sor line item 30 quarterly ajb/cjb/deep well anode bed monitoring & maintenance - 1 set each for pipeline (approx 5point2km) and one underground vessel , custom bid for services - sor line item 40 annual checking of ht line protection system/ctsu/polarization coupon monitoring- 1 set for pipeline(approx 5point2km) in india side , custom bid for services - sor line item 50 site visit minimum level 2 nace certified cp engineer -1 day annually , custom bid for services - sor line item 60 deputation of service engineer for emergency visit for rectification of breakdown maintenance of the cathodic protection system for approx 5point2km in india side per day charges for normal working of 8 hrs