Tamil Nadu’s registration department collected over ₹19,013 crore in stamp duty and registration fees during 2023-24. That figure represented an 8.28 percent increase over the previous year. On the surface it looked like steady progress.
What a Comptroller and Auditor General compliance audit found underneath those numbers told a considerably less comfortable story.
A test check covering just 114 of the department’s 647 auditable offices uncovered 967 cases of revenue leakage totalling ₹95.97 crore. The audit itself acknowledged that these cases were illustrative examples drawn from a fraction of the offices that could have been examined. The remaining 533 offices were not reviewed at all.
The Three Ways Revenue Was Lost
Misclassification Drove the Majority of Losses
The largest share of the identified leakage came from documents being registered under incorrect categories. When a transaction is misclassified, lower stamp duty rates apply than the transaction actually warrants. The department records the registration but collects less than it should.
Across the 114 offices examined, 605 misclassification cases were found involving ₹85.84 crore. A single jurisdiction in Chennai South contributed ₹1.6 crore in shortfall from possession-related documents registered under the wrong category.
Undervaluation Cases Revealed Hidden Transaction Values
The audit found 63 cases where properties were registered at values below what documents elsewhere in the system showed had actually been agreed between parties.
Four transactions covering nearly 15 acres of land in Venpedu and Vayallanallur were registered for ₹78.66 crore. Earlier agreements for the same transactions pointed to significantly higher prices. The CAG estimated the undervaluation at ₹71.16 crore with a revenue shortfall of ₹7.83 crore from those four transactions alone.
At Ambattur, three powers of attorney were registered showing zero consideration. Tax records and subsequent sale documents showed ₹100.08 crore had actually changed hands across those transactions. The resulting shortfall was ₹4.99 crore from three documents.
Registering Officers Were Not Connecting Available Information
The audit found that officers processing registrations were not adequately cross-referencing information available across multiple document types. Sale deeds, prior agreements, tax filings, project approvals, and technical assessments together often contained enough information to identify when a transaction was being registered below its true value or under an incorrect category.
That cross-referencing was not happening consistently. Information sat in different places within the system without being brought together at the point of registration where it would have mattered most.
The Oversight Picture Behind the Numbers
The department carried 5,428 internal audits in arrears as of March 2024. Outstanding audit paragraphs involving ₹323.7 crore remained unresolved across 61,109 cases. No audit committee meeting was convened during the entire 2023-24 financial year.
Of the 647 offices that could have been examined, only 114 were covered in the test check that produced these findings. The CAG noted that the identified cases should be understood as illustrative of a pattern rather than a complete accounting of losses across the department.
What This Means for Property Buyers
For anyone buying or selling property in Tamil Nadu, this audit points to a system where the mechanisms designed to ensure correct valuation and classification of transactions have been functioning with significant gaps.
The shift to mandatory online registration for first-sale properties launched in August 2026 creates a more structured digital trail that should make cross-referencing easier for registering officers going forward. Whether that structural change translates into the tighter scrutiny the CAG has called for will become clearer as the new system matures.
The ₹95.97 crore identified across 114 offices represents one chapter of a considerably larger story that 533 unexamined offices have not yet told.
