Modvat credit on unauthorised invoice copies after six months is barred, while notice by a proper officer remains valid.

Modvat credit could not be availed on an unauthorised extra copy of an invoice, because the relevant rule contemplated only original and duplicate invoices and the six-month time limit for taking credit had expired; no exemption applied merely because the inputs were sent to a job worker. Credit wrongly taken due to error or misconstruction could be covered by the notice provision, and a Superintendent fell within the expression "proper officer", so the notice was valid. The disallowance of credit was sustained, while the penalty was set aside.

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Issues: (i) Whether Modvat credit could be taken on an extra copy of the invoice after the expiry of six months from the date of issue of the duty-paying document; (ii) Whether notice for wrongly taken credit could validly be issued by the Superintendent.

Issue (i): Whether Modvat credit could be taken on an extra copy of the invoice after the expiry of six months from the date of issue of the duty-paying document.

Analysis: Rule 52A contemplated issue of invoices only in the original and duplicate copies. No provision authorised credit on an extra copy of the invoice. Rule 57G(2A) also barred taking credit beyond six months from the date of issue of the duty-paying document, and no exemption was available merely because the inputs had been sent to a job worker.

Conclusion: The claim to Modvat credit on the extra copy after six months was rejected.

Issue (ii): Whether notice for wrongly taken credit could validly be issued by the Superintendent.

Analysis: The case involved credit wrongly taken on account of error, misconstruction or omission, so Rule 57G(1) applied rather than Rule 57G(2). The rule empowered the proper officer to issue notice, and the Superintendent fell within that expression.

Conclusion: The notice issued by the Superintendent was valid.

Final Conclusion: The disallowance of credit was sustained, but the penalty was set aside, resulting in only partial relief to the appellant.

Ratio Decidendi: Modvat credit cannot be availed on an unauthorised extra invoice copy beyond the prescribed six-month period, and in cases of wrongly taken credit due to error or misconstruction, notice may be issued by the proper officer under the relevant rule.

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