Valuation refers to calculation of value of business/ underlying asset / liabilities of entity. One of key factors which drives valuation process is purpose. The Valuation approach will depend on the purpose for which the valuation is done. E.g. Practically the approach followed for Valuation of Inventory for the purpose of submission of Stock Statement to Bank will be different from the approach followed for same asset for the purpose of submission to Income Tax Authority, isn't it ?