The Black Money (Undisclosed Foreign Income and Assets) and Imposition of Tax Act, 2015 aims to address the issue of undisclosed foreign income and assets held by Indian residents, imposing penalties and taxes on individuals who fail to disclose such assets. The act outlines procedures for compliance, valuation of assets, and enforcement mechanisms, and includes a one-time compliance window allowing individuals to declare undeclared foreign assets to avoid penalties. International cooperation has increased with agreements for information exchange, further enforcing the fight against black money stashed abroad.