The Rajasthan Value Added Tax Act, 2003 is a legislative framework aimed at consolidating and amending laws regarding the taxation on the sale or purchase of goods in Rajasthan. The Act defines various terms related to taxation, including 'dealer', 'assessing authority', and 'purchase price', and establishes the conditions under which tax is levied on businesses operating within the state. It applies to dealers with specific turnover limits and outlines the roles of various authorities in tax assessment and enforcement.