S. 263 : Commissioner – Revision of orders prejudicial to revenue -Loss on account of sale of shares – Mere non-mentioning of reasons for allowing said claim of assessee by Assessing Officer would not make assessment order erroneous so as to invoke revision jurisdiction- Unabsorbed depreciation – Sale of land -Difference between stamp value and actual consideration received – Addition is justified – loss on sale of vehicle – Remanded to Assessing Officer . [ S.28 (i),50, 50C , 72, 143 (3) ,170 ]