01 January 2010
When a by product having its own use and market is produced in the process of manufacture then like all other finished products whether liable to excise duty or not it should be accounted for seperately and not clubbed as work-in-process.Once this is understood all other book-keeping formalities follow. If some quantity of the by product is having captive consumption then the excise rules with regard to captive consumption should be followed for that quantity which is captively consumed.