law: The Black Money (Undisclosed Foreign Income and Assets) and Imposition of Tax Act, 2015
  42. Penalty for failure to furnish return in relation to foreign income and asset.-
  If a person, being a resident other than not ordinarily resident in India within the meaning of clause (6) of section 6 of the Income-tax Act, who is required to furnish a return of his income for any previous year, as required under sub-section (1) of section 139 of the Income-tax Act or by the provisos to that sub-section, and who at any time during such previous year,-
  (i) held any asset (including financial interest in any entity) located outside India as a beneficial owner or otherwise; or
  (ii) was a beneficiary of any asset (including financial interest in any entity) located outside India; or
  (iii) had any income from a source located outside India, and fails to furnish such return before the end of the relevant assessment year, the Assessing Officer may direct that such person shall pay, by way of penalty, a sum of ten lakh rupees:
  Provided that this section shall not apply in respect of an asset, being one or more bank accounts having an aggregate balance which does not exceed a value equivalent to five hundred thousand rupees at any time during the previous year.
  Explanation.- For determining the value equivalent in rupees of the balance in an account maintained in foreign currency, the rate of exchange for calculation of the value in rupees shall be the telegraphic transfer buying rate of such currency as on the date for which the value is to be determined as adopted by the State Bank of India constituted under the State Bank of India Act, 1955 (23 of 1955).