Use of undisclosed material and ignored evidence vitiated the Tribunal's order, which was quashed and remitted for fresh hearing.

An adjudicating authority must decide on the evidence and contentions actually placed before it and cannot rely on undisclosed material or ignore relevant material on record. Here, the assessment and appellate findings were based on material collected behind the assessee's back, not supplied or confronted for explanation, while the appellate authority failed to deal independently with the assessee's objections and recorded inconsistent conclusions. The Tribunal also relied on vague references to unspecified "specific instances" and treated the assessee's alleged silence as decisive without verifying disclosure of the adverse material. The Tribunal's order was therefore vitiated by non-application of mind, quashed, and the matter was remitted for fresh decision after hearing the parties.

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Issues: Whether the Tribunal erred in law in taking into consideration irrelevant material and ignoring the relevant material on record, thereby vitiating its order.

Analysis: The assessment rested on material collected behind the assessee's back, which was neither supplied to the assessee nor put to it for explanation. The appellate authority did not independently deal with the assessee's contentions and recorded inconsistent findings. The Tribunal also dismissed the appeal by referring vaguely to unspecified "specific instances" and by treating the assessee's alleged silence as decisive, without examining whether the adverse material had ever been disclosed or confronted. An adjudicating authority is required to consider the evidence and contentions placed before it and cannot sustain findings on undisclosed material or by ignoring relevant material on record.

Conclusion: The Tribunal's order was vitiated by non-application of mind and was unsustainable. The question was answered in the affirmative in favour of the assessee, the Tribunal's order was quashed and set aside, and the matter was restored to the Tribunal for fresh decision after hearing the parties.

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