Section 139
Oath on affidavit by whom to be administered
Part XI: Miscellaneous
In the case of any affidavit under this Code—
(a) any Court or Magistrate, or
[(aa) any notary appointed under the Notaries Act, 1952 (53 of 1952); or]
(b) any officer or other person whom a High Court may appoint in this behalf, or
(c) any officer appointed by any other Court which the State Government has generally or specially empowered in this behalf, may administer the oath to the deponent.
The Code of Civil Procedure, 1908 (Act No. 5 of 1908). From the updated text on India Code, with later amendments. Being checked against the official copy; amendment notes are not shown yet.