Section 29(b) in The Companies (Cost records and audit) Rules, 2014
(b)Proper records shall be maintained to enable company to identify the capital employed, net fixed assets and working capital separately for the production of goods or rendering of services under reference and other goods or services to the extent such elements are separately identifiable. Non-identifiable items shall be allocated on a suitable and reasonable basis to different goods or services. Fresh investments on fixed assets for production of goods or rendering of services under reference that have not contributed to the production of goods or rendering of services during the relevant period or year shall be indicated in cost records. The records shall, in addition, show assets added as replacement and those added for increasing existing capacity.
