(b)if he is not so satisfied, after affording a reasonable opportunity of being heard,––(i)shall pass an order in writing rejecting the application, where in in any of the cases specified the application was made sub-section (2) (Table: Sl. No. 2); and(ii)in any other case, shall pass an order in writing rejecting the application and also cancelling the approval, and send a copy of the order to the applicant and the Assessing Officer.