Appellate authority power to increase penalties is limited; payment of tax and interest can justify mitigation of penalty.
Appellate authority does not have power to increase or impose a fresh penalty; payment of tax and interest that neutralises pecuniary advantage is relevant for mitigation, and taxpayer status and proportionality are material in assessing whether a revised penalty is unduly harsh under the statutory penalty framework.

Penalty minimums prohibited from reduction: statutory scheme prevents lowering prescribed service tax penalty through discretionary provisions.
Penalty under section 78 of the Finance Act, 1994 cannot be reduced below the statutory minimum by invoking section 80; a conjoint reading of the provisions shows no discretion to levy or reduce a penalty below the prescribed floor, and appellate bodies and tribunals cannot read such power into the statutory scheme.

Penalty under Section 76 cannot be reduced below the statutory minimum; authority's discretion is confined to the prescribed range.
Section 76 penalty under the Finance Act, 1994 confines the authority to a legislatively prescribed minimum-to-maximum range; authorities lack power to reduce the penalty below the statutory minimum per day of default, and courts have rejected construing any additional discretion into the provision as that would amount to rewriting the statute.