Linked by the mobile already on TMC's record. Every ledger line names the officer who made the change, and the owner is alerted the moment an assessment is edited. Tap a property for its tax breakdown, or pay to see the receipt land in the ledger.
Role: Assistant Commissioner (Ward). Demand versus collection, arrears aging, grievance SLAs and pending maker-checker approvals, read from the ledger. Figures are synthetic and scaled to Thane-sized wards.
₹ crore. Bars: collected. Lighter bars: projected. Line: cumulative target for 100% by 31 March.
By years outstanding. Older buckets are where warrants and Abhay Yojana settlements apply.
| Action | Property | Maker | Age | |
|---|---|---|---|---|
| Assessment reduction 34% | NK/04/017732 | Assessor S. Gaikwad | 2 d | |
| Penalty waiver ₹42,300 | NK/02/003318 | Clerk R. Pawar | 1 d | |
| Category change C→R | NK/07/021105 | Assessor S. Gaikwad | 5 h |
Every high-impact action needs a second approver. Approval, rejection and reason are written to the audit chain.
| Property | Type | Outstanding | Action |
|---|---|---|---|
| NK/06/020118 | Commercial complex | ₹1.42 Cr | Warrant issued |
| NK/03/010877 | Industrial shed | ₹88.6 L | Notice served |
| NK/01/000922 | Housing society | ₹61.3 L | Abhay Yojana |
| NK/05/018440 | Hotel | ₹47.9 L | Notice served |
| Ticket | Type | Property | Assigned | SLA |
|---|---|---|---|---|
| G-26-0912 | Objection to assessment | NK/04/017732 | Assessor M. Deshmukh | 3 d overdue |
| G-26-0931 | Name transfer (mutation) | NK/01/000451 | Clerk R. Pawar | 1 d left |
| G-26-0940 | Duplicate bill | NK/05/019004 | Clerk D. Kadam | 9 d left |
| G-26-0944 | Receipt not reflected | NK/03/011276 | Agent K. More | 12 d left |
Rules run nightly over the audit chain and the ledger. Open a flag to see the evidence, the hash-chained audit trail behind it, and the officer's peer comparison. Officer names are synthetic.
| Sev | Flag | Rule | Officer | Ward |
|---|
| Officer | Assessments | Reductions | Reduction rate | Peer median | Open flags |
|---|---|---|---|---|---|
| S. Gaikwad | 412 | 97 | 23.5% | 6.1% | 7 |
| M. Deshmukh | 388 | 27 | 7.0% | 6.1% | 1 |
| P. Joshi | 401 | 19 | 4.7% | 6.1% | 0 |
| A. Shaikh | 356 | 31 | 8.7% | 6.1% | 2 |
A high rate is a prompt for review, not a verdict. Scorecards are visible to department heads and Vigilance only.
KarSetu sits beside the Corporation's existing property tax system, never inside it. Data flows one way into a read model during the pilot; write-back comes later through approved APIs with maker-checker in front of it.
Every read or write on a property record becomes an event: actor, role, device, IP, before and after values, timestamp. Each event stores the SHA-256 hash of the previous event, so removing or editing any past event breaks every hash after it. Events land in append-only storage the application cannot delete from. Once a day the latest hash is published to the Corporation, so even Dinero cannot rewrite history without detection.
MeitY-empanelled cloud in an Indian region, or the State Data Centre on-prem if the Corporation prefers. Data never leaves India. TMC owns the data and the tenant; Dinero operates the software. Exit clause: full export in open formats plus the audit chain, within 30 days. Field-level encryption for mobile numbers and names, TLS everywhere, secrets in a managed vault, CERT-In empanelled audit before city-wide go-live.