S. 143(3) : Assessment-Jurisdiction-Pecuniary Jurisdiction-Non-corporate returns declaring income above Rs. 20 Lakhs with Assistant Commissioner or Deputy Commissioner and not with ITO-Notice and consequential assessment order is invalid-Instruction No. 1/2011 (F. No. 187/12/2010-It(A-I), Dated 31-1-2011. [S. 143(2), 148, 149(1)(b)]