Schedule of Rates
Tamil Nadu Water Works Schedule of Rates 2023-24
914 rate items from the Tamil Nadu Water Supply and Drainage (TWAD) Board, effective 2024-01-23. Searchable, with Excel and CSV download.
- Department
- Tamil Nadu Water Supply and Drainage (TWAD) Board
- Edition
- 2023-24 — effective 2024-01-23
- Items reproduced
- 914 across 11 chapters
- Retrieved
- 2026-07-29
Transcribed from Tamil Nadu TWAD Board — Standard Schedule of Rates 2023-24, effective 23 January 2024. Reference only — departments amend rates through correction slips between editions, so verify against the official source before pricing a bid. Items that could not be transcribed unambiguously have been left out rather than guessed.
Browse by chapter
914 items across 11 chapters. Each chapter is searchable and sortable.
- Rates for Building Materials74
- Rates for Earthwork Excavation Other Than Pipe Laying Works and Open Wells29
- Rates for Earthwork Excavation Pipe Laying Works for Water Supply and Sewerage Works8
- Rates for Electrical Items223
- Rates for Electromechanical Items12
- Rates for Labour80
- Rates for Materials28
- Rates for Miscellaneous Items182
- Rates for Other Construction Materials194
- Rates for Pumpsets76
- Rates for Works8
How to use the Tamil Nadu Schedule of Rates
The water works schedule of rates sets the department's accepted rate for each item of work, and estimates for Tamil Nadu government projects are built by mapping a project's Bill of Quantities to these items. Rates here run from ₹1.07 per rm to ₹38,62,111.00 each, spanning 11 chapters from earthwork through to finishing trades.
Three things routinely go wrong. Estimators price against a superseded edition, because correction slips are published separately from the main schedule. They pick a nearly-similar item code rather than the exact one, which survives internal review and fails departmental scrutiny. And they miss that a rate is quoted for a different unit than the BOQ uses — a rm rate applied to a nos quantity is a large error that looks reasonable on a spreadsheet.
For the schedules published by every other state, see the Schedule of Rates by state directory, and for how SOR items relate to a tender's BOQ, the guide to SOR vs BOQ.
Pricing a live tender against this schedule
Mapping a tender BOQ to the right SOR items by hand, applying the current cost index, and catching where rates have moved since the base edition is slow and easy to get wrong. Arched's estimation engine reads the tender, maps it to the applicable schedule, and flags where the numbers are exposed before submission.
See how estimation works