Sir,
Chapter note 4 of chapter 27 of 1st schedule pf CETA, 1985 states that in relation to lubricating oils and lubricating preparations of heading 2710, labelling or relabelling of containers or repacking] from bulk packs to retail packs or the adoption of any other treatment to render the product marketable to the consumer, shall amount to 'manufacture'. The waste oil is already marketable since you are purchasing it for the purpose of purifying it. The Department cannot claim because of subjecting the waste oil to purification process it has become marketable. Moreover the process of purification of waste oil does not result in any change in character, use or properties of the oil.
It is held by the Constitution Bench of Supreme Court in Delhi Cloth Mills Co. Ltd.1962 (10) TMI 1 - SUPREME COURT OF INDIA case that manufacture means bringing into existence a new substance. Manufacture is end result of one or more processes, through which original commodity passes. Thus, manufacture implies a change but every change is not manufacture. A new and different article must emerge having a distinctive name, character or use. In my opinion the process of removing impurities from wast oil does not result in any new product having a distinctive name, character or use. Therefor the process undertaken by you does not amount to manufacture and hence the process of purifying waste oil does not amount to manufacture and hence not excisable. This is my opinion.