procurement of cng dispenser for cng filling station , design , detail engineering , manufacturing , assembly , factory testing , supply of dispenser including packaging , insurance , handling transportation of dispenser , loading and unloading at sites , documentation etc . and providing all related services including installation , integration , site acceptance testing , trial run and commissioning , commissioning spares , amc during warranty period , all drawings , documents and licensed software & hardware , converters , cables etc . conforming to technical specification for cng dispenser . [including onsite training of each purchasers personnel for max . 3 ( three ) days for car and bus dispenser] , cng bus dispensers :design , engineering , manufacturing , testing , installation supervision and supply of cng bus dispensers as per scope of work defined in the tender documents inclusive of erection & commissioning spares ( the list has to be furnished with the offer ) . , supply of mandatory spares ( unit wise price breakup to be given separately ) for bus dispensers . , lump sum comprehensive annual operation , repair & maintenance charges per car dispenser for 1st year after warrantee period inclusive of all manpower , spare , consumables and spares etc . , , lump sum comprehensive annual operation , repair & maintenance charges per car dispenser for 2nd year after warrantee period inclusive of all manpower , spare , consumables and spares etc . , , calibration unit :calibration unit for bus dispensers in the form of master meter ( master mass flow meter ) complete with hose , nozzle and fittings and vent valve mounted on a suitable frame / trolley meeting international standards . master calibration unit shall be selected such that same meter can be used as a standard meter for both bus and car dispensers if required . the calibrator master meter for car dispenser should be calibrated and certified by statutory authorities certified custody transfer meter of the country of origin .