31 December 2011
Section 133 is an empowering section. It gives powers to the AO for making an inquiry in connection with any purpose of this Act. These powers may be exercised when any assessment proceeding is going on. Inquiry can be made with third parties having any connection with the assessee. . Certain restrictions have also been imposed in cases where proceeding is not going on. In such cases the low ranked authority has to take prior approval of Director or Commissioner.