Twenty tons on the bill, eighteen on the weighbridge
Coal does not go missing at the kiln; it goes missing on the road. Keeping the weighbridge slip makes the gap visible — and visible gaps shrink.
On most kilns the coal account is built from the bill. What the bill says goes into stock.
The trouble is that a bill records the order, not the delivery. The real quantity is weighed at the kanta, and that is where the gap appears. Eighteen-point-four tons against an order of twenty is unremarkable. A ton or two sounds small — at current rates it is fifteen thousand rupees, on every load.
The fix is a habit, not a technology: keep the weighbridge slip for every load and attach it to that purchase. After a few loads the pattern is obvious — which vendor is always short, and whose gap sits near zero.
Here that account builds itself: billed quantity, weighed quantity, the gap, and what the gap is worth — per load and per vendor.