The presentcaserelates to uniform allowance, which as noticed earlier is exempt from tax under section 10(14)(i) of the Act read with rule 2BB(1)(f) of the rules to the extent to which such expenses are actually incurred for that purpose. Under the Act, the liability to the employer is to deduct tax at source to the extent of the taxable income of the employee. If any part of such income is exempt, there is no liability to deduct tax at source from such income. Since liability to pay tax under the Act is of the individual employee and the liability on the part of the employer is only to deduct tax at source, Circular No.15 dated 8.5.1969 provides that self certification on the part of the employee is sufficient for the disbursing officer for calculation of the tax deductible at source. While the said circular relates to conveyances, the underlying principle can well be applied even in thecaseof uniform allowance. Therefore, if an employee gives a certificate certifying that he had incurred certain expenditure towards uniforms and maintenance thereof, insofar as the disbursing officer is concerned, that would be adequate while calculating the tax deductible at source. If the Assessing Officer has any doubt about the claim made by any individual employee, he can always take upon the issue during the course of assessment proceedings of such employee, inasmuch as, as rightly submitted by the learned counsel for the respondent, self certification is good enough for the employer not to deduct tax at source, it does not grant any immunity to the employee if the claim is incorrect. As held by this court in Commissioner of Income-tax v. Oil & Natural Gas Corporation Ltd., [2002] 254 ITR 121 (Guj.), whether an employee actually incurs such amount for official purposes is relevant for assessment of such employee because the exemption operates in his terms and conditions of availing such exemption that is to be fulfilled by him. Whether the employee is able to substantiate his claim to exemption has no bearing on the estimate of income liable to tax to be made by the employer. Under the circumstances, there is no legal infirmity in the impugned order passed by the Tribunal in placing reliance upon the above circular for holding that self certification on the part of the employees was adequate for the assessee not to deduct tax from the reimbursement allowance towards expenditure incurred for uniforms. The appeal, therefore, fails and is accordingly dismissed with no order as to costs.