Five steps from a problem to its solution.

Help me design and build a first working prototype for this problem in Sangrur, Punjab, India.

Problem: Paddy farmers in Punjab can't see how close their mandi is to its new procurement target before they bring their crop in.
Who it hurts: Farmers growing non-Basmati paddy in Punjab, and the arhtiyas (commission agents) who handle their sales at each purchase centre.
The moment it hurts: A tractor-trolley of harvested paddy is ready, and the farmer has to choose a mandi without knowing whether it has already reached the quantity it was assigned.
What people do today: Farmers rely on arhtiyas and word of mouth; the mandi-wise targets were sent to agencies and officials through a proforma, not published for farmers.
Why it is still unsolved: Targets are based on each centre's three-year average, but this year's crop is bigger, and nobody shows farmers live arrivals against the target, so the risk shows up only once they are already at the gate.
What solved looks like: A public board, by mandi, showing the assigned target, arrivals and purchases so far and the share remaining, updated daily, with alerts when a centre nears its limit and a list of nearby centres with room.
Where: Sangrur, Punjab, India

First, list what you would need to learn from the people affected before building, as interview questions.
Then propose the simplest version that would help, the screens or messages it needs, and the data it would use.
Keep it cheap to run, accessible, and respectful of people's privacy. Flag anything you are unsure about instead of guessing.