The Arrival Curve
Ask what basmati "fetched this year" and you'll get five different answers from five honest men — because they sold in five different weeks. The mandi doesn't pay a season average. It pays a point on the arrival curve, and the curve moves more inside one month than most rates move in a year.
The shape of the curve
Arrivals begin thin. The first 1509 trolleys reach the yard from late September, when millers have empty pipelines and export orders waiting; with little grain on the floor, buyers compete and the early rate often runs firm. Then the belt's harvest arrives all at once. Through late October and November the yards fill, every buyer has grain in front of him, and the daily rate softens under sheer volume — this is the glut window, and it is where most growers sell, because it is when most grain is ready.
After the peak, arrivals taper. Grain still coming in late — dried properly, stored a few weeks, or simply from later transplanting — meets buyers who are topping up rather than drowning, and rates typically firm again. The curve isn't a law; a big export order or a weather scare can bend any week of it. But the shape repeats often enough that it should sit in every selling decision.
What a grower actually controls
Moisture is the cheapest rate improvement available. Wet grain is cut hard at any point on the curve. A day or two of proper drying before loading often earns more per quintal than a week of waiting for the rate to move.
Variety spreads the curve for you. A 1509 block and an 1121 block don't just spread field risk — they sell in different windows by design. The early crop catches the early market; the long-grain crop catches the quality market.
Selling in lots beats selling in one day. Nobody times the top. Splitting the crop into two or three sales across the season trades the small chance of a perfect price for a much better average one — the same logic every trader in the yard uses himself.
Watch the board before you load. A rate that moved ₹100 between two nearby yards happens routinely during peak arrivals. The board on this site exists for exactly that morning decision: same grain, same day, better yard.
The arrival curve rewards the grower who treats selling as part of farming — not the last chore after it.