GST Notices: ASMT-10, DRC-01 and How Scrutiny Works

A GST notice can feel alarming, but most trace back to a small, predictable set of system-flagged discrepancies rather than a targeted investigation. Understanding the pattern helps take the right first step.

Why notices actually get triggered

• GSTR-1 vs GSTR-3B mismatch — reported sales don't match declared liability for the same period.
• ITC vs GSTR-2B mismatch — Input Tax Credit claimed exceeds what's reflected as available from supplier filings.
• Non-filing — one or more periods' returns simply weren't filed.
• E-way bill vs turnover inconsistency — goods movement volume looks disproportionate to reported sales.

ASMT-10: the scrutiny notice

ASMT-10 is issued when an officer's scrutiny of filed returns turns up a discrepancy. It specifies the issue and a deadline to respond. The reply is filed as ASMT-11, and should directly address each discrepancy raised — with supporting documents and reconciliation, not just an assurance that everything is fine.

DRC-01: the demand notice

If scrutiny (or an audit, or an investigation) concludes that tax is actually owed, a formal demand notice is issued as DRC-01, specifying the amount and the legal basis. This is a more serious stage than ASMT-10 — it's a formal demand, not just a query, and has its own response timeline and process, potentially leading to adjudication if unresolved.

GSTR-3A: the non-filing notice

Sent automatically when mandatory returns (GSTR-1, GSTR-3B, GSTR-4, or GSTR-8, depending on registration type) go unfiled. The straightforward response is simply to file the pending returns — continued non-response can escalate toward registration cancellation.

What tax professionals say about responding well

The advice that comes up consistently: understand the specific reason before drafting a reply, back the response with actual reconciliation and documents rather than a general assurance, and respond within the deadline — a short, generic, or late reply is what most often turns a manageable notice into a bigger problem.

Key takeaways

• Most notices trace back to an automatic mismatch — GSTR-1 vs 3B, ITC vs GSTR-2B, or a filing gap.
• ASMT-10 is a scrutiny query; DRC-01 is a formal demand — the second is more serious than the first.
• A specific, document-backed reply within the deadline is what actually resolves a notice — a generic one-liner tends to make things worse.