” Mangalam Publications V. CIT [2024 INSC 53] dated 23.01.2024 “43. There is one more aspect which we may mention. Admittedly, the returns for the three assessment years under consideration were not accompanied by the regular books of account. Though under sub-section (9)(f) of Section 139, such returns could have been treated as defective returns by the assessing officer and the assessee intimated to remove the defect failing which the returns would have been invalid, however, the materials on record do not indicate that the assessing officer had issued any notice to the assessee bringing to its notice such defect and calling upon the assessee to rectify the defect within the period as provided under the aforesaid provision. In other words, the assessing officer had accepted the returns submitted by the assessee for the three assessment years under question. At this stage, we may also mention that it is the case of the assessee that though it could not maintain and file regular books ...