M-223
Upkeep
Upkeep looks at the next 90 days of each truck: the service, the tyres, the battery, and workshop and repairs, each with a rupee range, so the month's cash can be set aside before the bill arrives.
Tell it when each was last done and the forecast sharpens. Ranges are rounded, to a hundred rupees below ten thousand and to five hundred above. A tyre line says how long a set of that size lasts on that truck, so a replacement can be planned rather than met at the roadside.
Service intervals come from the maker where the register holds them; the rupees are our estimate, marked as ours. It is a plan, not a workshop's quote.