(8)The under-reported income, for the purposes of this section, shall not include the following:—(a)the amount of income in respect of which the assessee offers an explanation and the Competent Authority, is satisfied that the explanation is bona fide and the assessee has disclosed all the material facts to substantiate the explanation offered;(b)the amount of under-reported income determined on the basis of an estimate, if the accounts are correct and complete to the satisfaction of the Competent Authority, but the method employed is such that the income cannot properly be deduced therefrom;(c)the amount of under-reported income determined on the basis of an estimate, if the assessee has, on his own, estimated a lower amount of addition or disallowance on the same issue, has included such amount in the computation of his income and has disclosed all the facts material to the addition or disallowance; and(d)the amount of under-reported income represented by any addition made in conformity with the arm's length price determined by the Transfer Pricing Officer, where the assessee had maintained such information and documents as may be prescribed under section 171, declared the international transaction under Chapter X, and, disclosed all the material facts relating to the transaction.