(3)Where the Assessing Officer is not satisfied about the correctness or completeness of the accounts of the assessee, or where the method of accounting provided in sub-section (1) or accounting standards as notified under sub-section (2), have not been regularly followed by the assessee, the Assessing Officer may make an assessment in the manner provided in section 144.] [ Inserted by Act 20 of 2002, Section 60 (w.e.f. 1.4.2003).]