The Indian government and its law enforcement agencies get detailed information about financial accounts held by Indian residents in foreign countries through two sources. The information includes: (i) Account holder's name, address, and tax identification number (TIN); (ii) Account number and balance; (iii) Details of foreign income such as interest, dividends, and other financial proceeds.

FATCA and CRS are the two sources of information that help the Indian income tax department to know the global income of its resident taxpayers. This also helps the department identify taxpayers who may not have disclosed their foreign assets and income.
CRS stands for the Common Reporting Standard and FATCA stands for the Foreign Account Tax Compliance Act.