S. 263: Commissioner-Revision of orders prejudicial to revenue-Excess stock-Survey-Additional income was offered-Specific queries raised by Assessing Officer and had explained that the only source of income of assessee was from business-Revision order of CIT for not invoking provision of section 115 BBE was quashed and set aside.[S. 28(i), 69, 115BBE, 133A, 143(3)]