Delay condonation based on sufficient cause upheld where illness, relocation and pandemic disruption justified late filing and jurisdictional challenge.
The tribunal applied a purposive construction of sufficient cause to condone substantial delay where cumulative factors-serious illness, change of residence and pandemic disruption-made filing untimely. It also found the assessment infirm for want of territorial and pecuniary jurisdiction because the taxpayer had established residence and filing history in a different territorial unit and administrative guidance allocated jurisdiction accordingly, underscoring that proper vesting of authority is a condition precedent to valid assessment.