Introduction:

In the case of M/s. Mahadev Transport And Contractors v. Assistant Commissioner and Others [WRIT PETITION Nos:16500, 16548 & 18862 of 2025], the Andhra Pradesh High Court bench comprising Justices R. Raghunandan Rao and Sumathi Jagadam addressed the significant question of whether the absence of a Document Identification Number (DIN) in assessment orders passed by taxation authorities under the CGST Act could render such orders void. The petitioner, M/s. Mahadev Transport and Contractors, challenged assessment orders on the ground that they lacked DIN, claiming that the instructions of the Central Board of Indirect Taxes and Customs (CBIC) mandated such identification and that violation of the instructions nullified the orders. The Court, however, dismissed the petition and held that while violation of CBIC circulars may render the order invalid, it does not make them void ab initio. The judgment clarifies the legal distinction between “invalid” and “void” in the context of taxation law and reiterates the principle that administrative circulars cannot override statutory provisions.

Arguments of the Petitioner:

The petitioner contended that the assessment orders passed against them were fundamentally flawed because they did not contain a Document Identification Number (DIN) as mandated by the instructions issued by the CBIC. The petitioner submitted that CBIC circulars, being binding on taxation authorities by virtue of Section 168 of the CGST Act, 2017, must be strictly followed. Since the instructions required all communications, including assessment orders, to carry a DIN, any order issued without such a number would be a nullity. According to the petitioner, the absence of DIN was not a mere irregularity but a fatal defect going to the root of jurisdiction, thereby rendering the orders void and unenforceable. They emphasized that the purpose of DIN was to ensure transparency, authenticity, and traceability of official communications, thereby preventing misuse or fabrication of documents. The petitioner also argued that since they had received assessment orders without DIN, such service was incomplete and ineffective, which meant that they had not been validly communicated. Consequently, they sought quashing of the assessment orders, asserting that allowing them to stand would defeat the very purpose of introducing DIN in taxation governance.

Arguments of the Respondents:

On the other hand, the Revenue authorities strongly opposed the petition, contending that the absence of a DIN did not automatically render the assessment orders void. They argued that CBIC circulars are administrative in nature and, while binding on taxation officers, cannot be treated as statutory mandates conferring enforceable rights upon assessees. They clarified that the language of the circulars only stipulates that non-compliant orders would be “invalid” but does not elevate them to the category of “void orders.” The Revenue maintained that invalid orders are enforceable unless set aside by a competent Court or authority. Thus, the orders in question remained in force until quashed, and the petitioner could not claim immunity simply on the ground of absence of DIN. Further, they highlighted that the petitioner had received the orders through the GST portal, and therefore, the argument of non-service was untenable. The Revenue contended that equating “absence of DIN” with “absence of jurisdiction” would lead to an impractical outcome where numerous orders could be attacked on technicalities rather than on substantive grounds. Hence, they prayed for dismissal of the petition.

Judgment of the Court:

The bench of Justices R. Raghunandan Rao and Sumathi Jagadam carefully analyzed the rival contentions, the provisions of the CGST Act, and the role of CBIC circulars. The Court began by examining Section 168 of the CGST Act, which empowers the CBIC to issue instructions to taxation authorities for proper administration of the Act. The Court noted that such instructions are binding on the authorities but clarified that they are not statutory provisions capable of creating substantive rights for taxpayers. This distinction formed the crux of the Court’s reasoning.

The Court further elaborated on the difference between “invalid” and “void” orders. A void order, it held, is non-existent in the eyes of law and has no legal force from inception. An invalid order, on the other hand, continues to remain operative and enforceable unless and until it is challenged before and struck down by a competent authority. The Court held that violation of CBIC instructions may invalidate an order but does not ipso facto render it void. Therefore, the absence of DIN, even if in violation of instructions, did not strip the assessing officer of jurisdiction or authority to pass the order. Instead, it merely rendered the order open to challenge before the Court.

The Court also addressed the petitioner’s contention regarding service of orders. It observed that service without DIN could only be considered ineffective if the Act or Rules specifically mandated DIN as an essential part of service. However, no such statutory provision existed in the CGST Act or Rules. The stipulation arose only from CBIC circulars, which, as discussed earlier, were administrative directions binding on officers but not enforceable as statutory rights by assessees. Since the petitioner had admittedly received the orders through the GST portal, they could not claim ignorance or non-service.

In conclusion, the Court held that assessment orders passed without DIN were not void but only irregular or invalid. Such orders remained in force until they were set aside by a competent Court or authority. Since the petitioner had failed to establish any substantive illegality in the orders apart from the absence of DIN, there was no ground for interference. The writ petitions were therefore dismissed.

This judgment is significant as it reinforces the principle that administrative circulars and instructions cannot override statutory provisions, and while they bind authorities internally, they do not automatically confer enforceable rights on assessees. It also provides much-needed clarity on the legal consequences of non-compliance with procedural requirements like DIN in tax governance. By distinguishing between “invalid” and “void,” the Court has ensured that substantive taxation proceedings are not derailed by mere technical irregularities, while still keeping open the possibility for assessees to challenge defective orders before appropriate forums.