hospitals diagnostic centres clinical centres or test laboratories for this category any product or a service in multiproduct company for which the individual turnover is rs 50 crore or more will need a cost audit in the case of a company producing any one specific product or service cost audit will be required if the net worth of the company is rs 150 crore or more or the turnover is rs 25 crore or more the last category for whom cost audit is required comprises of companies including foreign companies other than those having only liaison offices engaged in the production import and supply or trading of a classified set of medical devices