Limited scrutiny authorisation permits expedited completion of selected income tax returns filed during the finance year under prescribed parameters. Instruction empowers the Chief Commissioner of Income Tax to authorise assessing officers to complete limited scrutiny of returns filed in the finance year, with cases to be selected under parameters of Board Instruction No. 1938 and any norms prescribed by the CCIT; all selected cases must be prioritised and completed within the stated limited period, and compliance is to be ensured by the CCIT.