Free for the client's engineer and PMC

Bill room for contractor bill certification

Share one link. The client's engineer checks every quantity against its measurement and photo, certifies line by line, and you track payment to the day.

Every line traced to site

Start from the bill

The engineer opens RA Bill No. 7 and picks any line of the abstract, such as item 3.2, RCC in slabs and beams.

Certified line by line

For each line the engineer certifies it, certifies part with a reason, or holds it with a reason. Your team replies in the line’s own thread.

  • Certify, certify part or hold
  • A reason required for every cut
  • Replies with drawings and photos attached

Claimed against certified, bill by bill

Every cut is logged with who made it and why, per bill and to date, so the next bill argues from the record.

Payment tracked to the day. From certification to release.

Tracks every payment

Accepted date, due date, amount received and deductions at payment, with ageing per bill.

Payments/Ward office1 overdue
  • RA 4 · accepted 12 AugPaid 20 Sept · 39 days
    Paid
  • RA 5 · accepted 10 SeptPaid 2 Nov · 53 days
    Paid late
  • RA 6 · accepted 8 OctUnpaid · day 33
    Due

Marks the MSME 45-day line

For Udyam-registered contractors, days outstanding against the MSMED Act limit of 45 days from acceptance.

Payments/MSMEUdyam registered
RA 439 days
RA 553 days
RA 633 days
Line at 45 days from acceptance

Works out delayed-payment interest

Compound interest at three times the RBI bank rate, as section 16 of the Act provides, for your claim.

RA 5/Delayed payment8 days late
  • Accepted10 Sept 2026
  • 45-day limit25 Oct 2026
  • Paid2 Nov 2026
  • Interest basis3 x RBI bank rate
  • Compound, monthly restsSection 16

Schedules retention release

Retention held on each bill, with its release date from the end of the defect liability period.

Retention/Ward officeRelease 31 Mar 2028
  • RA 482,013
  • RA 590,630
  • RA 697,770
  • RA 71,04,244
  • Held, RA 4 to RA 7₹3,74,657

Questions

What contractors and client engineers ask about the bill room.

Contact the billing team

Does the client's engineer pay for the bill room?

No. The bill room is free for the client's engineer and the PMC. They see only the bills you share with them.

Does the client have to use it?

No. You can still submit on paper. The bill room is there for engineers who prefer to check from the desk.

Can the client change our quantities?

No. They certify, certify part or hold a line with a reason. Your measurements stay as recorded, and every decision is logged.

How is the MSME 45-day line worked out?

From the date of acceptance you record, for Udyam-registered contractors, against the limit in the MSMED Act, 2006. Interest follows section 16 of the Act.

Who certifies the bill?

The client's engineer-in-charge, always. Tatha Vastu records the decision; it never certifies on anyone's behalf.