2: Definitions:

In this Act, unless the context otherwise requires-

(21)"Manufacture" means any activity that brings out a change in an article or results in transformation into a new and different article so understood in commercial parlance, and would include producing, making, mining, collecting, extracting, altering, ornamenting, finishing, assembling or otherwise processing, treating or adapting any goods, but would not include any such process or mode of manufacture as may be prescribed;