<h1>India's tax transparency push used CRS data to nudge disclosures of undeclared foreign assets and strengthen compliance.</h1> India used CRS-derived data through the NUDGE programme to identify and prompt taxpayers to disclose previously undeclared foreign assets, producing a marked rise in reporting, additional declared assets and income, and follow-up campaigns; this operational use of AEOI data exemplifies how exchange of financial account information under the CRS enhances domestic tax compliance.