Missing the deadline can trigger stock exchange notices and requires a formal explanation from the company.
Typical consequences include:

• Public disclosure of delay

• Follow-up queries from investors and analysts

• Increased scrutiny in the next reporting cycle

• Possible governance concerns raised by rating agencies

Most delays occur because inconsistencies are discovered late in the assurance process rather than during drafting.

Yes, estimates are allowed when primary data is unavailable. However, companies must document:

• Source of estimation factors

• Assumptions used

• Reason estimates are necessary

• Improvement plan for future data collection

Undocumented estimates are one of the most common reasons auditors raise findings.

They are usually prepared through different workflows.
The PDF is narrative-driven, while XBRL requires structured tagged data. When teams manually transfer numbers between formats, small rounding, unit conversion, or classification differences create mismatches — and auditors treat them as material inconsistencies.

External assurance is not mandatory for every company today, but it is increasingly expected by investors, lenders, and rating agencies. Many listed companies voluntarily obtain limited assurance because regulators and exchanges treat BRSR disclosures as decision-useful information.
If assurance is performed, auditors will verify calculation methods, data traceability, and consistency across disclosures. If issues are found, companies may need to restate and resubmit their filing, delaying results publication.

Yes. BRSR disclosures are used by ESG rating agencies and increasingly referenced in credit assessments.
When auditors identify material inconsistencies, it raises questions about internal controls and data governance. Even if the numbers themselves are not financially material, the reliability of disclosures becomes the concern.