supply of procurement of different types of oil for track machines , gear oil sae-90 (api-gl-4 (brand-protomac hp-90 of balmer lawrie and co. ltd ./ servo ge ar hp-90 of iocl / mak spirol ep-90 of bpcl / hp gear oil ep-90 of hpcl). make- hpcl or bpcl or iocl or balmer lawrie or bharat shell or gocl. [ warranty period: 24 months after the date of delivery ] ] , gear oil sae-80w90, make- iocl or hpcl or bpcl or bharat shell or gulf of oil corp oration or balmer lawrie. [ warranty period: 24 months after the date of delivery ] ] , zf oil mobil atf 220, make- loram or mobil atf 220 or shell donax ta/spirax s2 atf ax or iocl or bpcl or balmer lawrie [ warranty period: 24 months after the date of delivery ] ] , transmission oil c4 sae-30, make- hpcl or bpcl or iocl or balmer lawrie or bharat shell or gulf of oil corporation [ warranty period: 24 months after the date of delivery ] ]