AO cannot decide reasonableness, commercial expediency of expenditure incurred by Assessee

B.BRIEF FACTS OF THE CASE AND QUESTION OF LAW Brief Facts: The Assessee, an individual, is proprietor of M/s.Opal Stone Industries and is engaged in the export of granite and marbles. He filed return of income on 27.10.2006 declaring income of Rs.26.94 lacs.The AO completed the assessment, on 31.12.2008, u/s. 143 (3) of the Act, determining the income of the assessee at Rs.41.15 lacs. Question of Law: 1. Whether the Ld. CIT (A) erred in deleting the addition of Rs. 4, 38,609/- made by the A.O towards foreign tour travel expenses as assessee failed to prove relation of foreign travel with busi...