AO’s action of allowing sec. 80-IB relief in haste without making proper inquiry calls for sec. 263

IT : Where Assessing Officer even though taking a view that there existed possibility of violation of approved building plan, allowed assessee's claim for deduction under section 80-IB(10) as assessment was getting time barred, it being a case of non-application of mind, Commissioner was justified in setting aside assessment in exercise of revisional power under section 263