S. 263 : Commissioner-Revision of orders prejudicial to revenue-Search-An order of assessment passed under section 153A read with section 143(3) after getting an approval of Jt. Commissioner under section 153D could not be revised under section 263-Tax effect less than 1 crore-Appeal is not maintainable. [S. 40A(3), 143(3), 153A, 260A 268A]