Section 01Case notes
How it was built
Auctioneer’s sheet · worked example
How one lot is hammered
In a chit, members bid the discount they will give up to take this month’s pot. BidNest turns that discount into commission, a per-member dividend rounded to a friendly note, and a carry-forward so no rupee goes missing. Move the paddle and watch the ledger balance.
- Winning discount
- ₹42,500
- Less commission
- −₹25,000
- Dividend pool
- ₹17,500
- Per member, exact
- ₹875.00
- Per member, rounded to ₹50
- ₹850
- Carried to next month
- ₹500
- Winner takes home
- ₹4,57,500
- Each member pays this month
- ₹24,150
| Month | Bid | Carry in | Dividend | Carry out |
|---|---|---|---|---|
| 01 | ₹42,500 | ₹0 | ₹850 | ₹500 |
| 02 | ₹36,000 | ₹500 | ₹550 | ₹500 |
| 03 | ₹29,500 | ₹500 | ₹250 | ₹0 |
| 04 | ₹23,500 | ₹0 | ₹0 | ₹0 |
Illustrative figures for a hypothetical group, following the roundoff and carry-forward rules described in the case notes; not BidNest’s production code or real member data.
The catalogue is being brought up from the vault…
Bill of sale · No. BN-2025-50
Want the code, or the next one?
| Lot | BidNest: Modern Chit Fund Management Platform |
|---|---|
| Department | Backend |
| Consigned by | Product + Frontend |
| Date of sale | May 2025 |
| Materials | Next.js · React · TailwindCSS · Web Development |
| Hammer | Completed |
Conditions of sale
- Every lot is offered as seen. The source is open for inspection at the repository listed above.
- Figures on the auctioneer’s sheet are illustrative, worked from the roundoff and carry-forward rules in the case notes, and are not member data.
- Paddle numbers and bids in the ticker are theatre. The arithmetic behind them, in whole paise, is not.
- Screens are reproduced from the live build; images are shown as plates and may be cropped.