Madras HC (CMA No. 1925 of 2019, decided 08-04-2026, Dr G. Jayachandran J. authoring for the two-member bench): State Bank of India Commercial Branch, Coimbatore v. Deputy Commissioner, Service Tax Cell, Central Excise & Service Tax, Coimbatore. During a departmental audit the appellant bank was instructed to pay service tax of Rs.20,23,916/- on the premise that its share of profit in foreign exchange transactions was a taxable service; it paid on 22.12.2006, later filed a refund claim calling the remittance an error, which was rejected as barred by limitation. The bank then suo motu adjusted the amount in a subsequent return, triggering an order in original confirming a demand of Rs.19,87,688/- (service tax Rs.19,48,713/- + edn cess Rs.38,975/-) under S.73(1) Finance Act 1994, interest under S.75, and a penalty of Rs.1,00,000/- under S.76. The Commissioner (Appeals) and then CESTAT (Final Order No.43138 of 2017 dated 18.12.2017) upheld the orders, holding the taxability adjudication conclusive and Rule 6(3) STR 1994 irrelevant to taxability disputes. This Court found the share of profit is not liable to service tax and, as the payment was made solely on the audit team's instructions, the department ought to have refunded it at the first instance; the bank's suo motu adjustment is not an improper or impermissible process warranting penalty, and the department's unjust enrichment cannot be approved on grounds of limitation or failure to appeal the refund rejection, the episode being a technical error without mala fide intent. Accordingly the order in original and the CESTAT Final Order were set aside and the appeal allowed, no costs.