relevant information coming to his possession subsequently, he has reasons, which he must record, to believe that, by reason of omission or failure on the part of the assessee to make a true and full disclosure of all material facts necessary for his assessment during the concluded assessment proceedings, any part of his income, profits or gains chargeable to income-tax has escaped assessment. He may start reassessment proceedings either because some fresh facts had come to light which were not previously disclosed or some information with regard to the facts previously disclosed comes into his possession which tends to expose the untruthfulness of those facts. In such situations, it is not a case of mere change of opinion or the drawing of a different inference from the same facts as were earlier available but acting on fresh information. Since the belief is that of the Income-tax Officer, the sufficiency of reasons for forming this belief is not for the court to judge but it is open to an assessee to establish that there in fact existed no belief or that the belief was not at all a bona fide one or was based on vague, irrelevant and non- specific information. To that limited extent, the court may look into the conclusion arrived at by the Income-tax Officer and examine whether there was any material available on the record from which the requisite belief could be formed by the Income-tax Officer and further whether that material had any rational connection or a live link for the formation of the requisite belief."
