bids are invited for operation and maintenance of other machines and plants - offsite normal or regular lube oil test , operation and maintenance of other machines and plants - special offsite lube oil test , operation and maintenance of other machines and plants - offsite grease test , operation and maintenance of other machines and plants - elemental ferrography analysis , operation and maintenance of other machines and plants - expert level i visit - offsite normal / regular lube oil testsr. no. 1 to 5 in table a in scope of work (annexure 20) please refer sor & tender document for detailed item description. , special offsite lube oil testsr. no. 8 to 10 in table a in scope of work (annexure 20) please refer sor & tender document for detailed item description. , offsite grease testsr. no. 11 to 14 in table a inscope of work (annexure 20) please refer sor & tender document for detailed item description. , elemental & ferrography analysissr. no. 6 & 7 in table a in scope of work (annexure 20) please refer sor & tender document for detailed item description. , expert level iii visit please refer sor & tender document for detailed item description.