Section-138 of income-tax Act, 1961, talks about Disclosure of information respecting assessees.
138(1)(a) The Board or any other income-tax authority specified by it by a general or special order in this behalf may furnish or cause to be furnished to—
(i) any officer, authority or body performing any functions under any law relating to the imposition of any tax, duty or cess, or to dealings in foreign exchange as defined in clause (n) of section 2 of the Foreign Exchange Management Act, 1999 (42 of 1999); or
(ii) such officer, authority or body performing functions under any other law as the Central Government may, if in its opinion it is necessary so to do in the public interest, specify by notification in the Official Gazette in this behalf,
Government notified such officer and authority in this notification on 14th July 2020.