The Source of Supply
The story of onion prices begins in the soil of a few key states. India's onion production is heavily concentrated, with Maharashtra alone accounting for over 44% of the country's total output. States like Madhya Pradesh, Karnataka, Gujarat, and Rajasthan
follow, together making up the vast majority of supply. This geographic concentration means that any disruption in these specific regions has an outsized effect on the entire nation. The price you pay in Kolkata or Delhi is directly linked to the health of the harvest hundreds or even thousands of kilometres away in the fields of Nashik.
The Weather Gamble
Agriculture is always a gamble on the weather, and onions are particularly sensitive. India has three onion-growing seasons—Kharif (harvested Oct-Dec), Late Kharif (Jan-Mar), and Rabi (Mar-May). The Rabi crop, harvested in summer, has lower moisture content and can be stored for months, making it crucial for year-round supply. However, the Kharif crop is vulnerable to the monsoon. Excessive or unseasonal rain in producing states can lead to waterlogged fields, crop damage, and fungal diseases, wiping out a significant portion of the expected harvest. This creates an immediate supply shock, causing prices to spike during the festive season of August to September, a period when demand is high.
The Long Road to Your Kitchen
The journey from farm to fork is long, and every kilometre adds to the cost. Once harvested, onions travel from the farmer to a local aggregator, then to a large wholesale market (mandi), then to a city-level wholesaler, and finally to your neighbourhood retailer. Each step in this chain involves costs for labour, packing, and, most significantly, transport. Rising fuel prices directly translate to higher freight charges, a cost that is inevitably passed on to the consumer. It is why onions are cheapest in producing states like Maharashtra and progressively more expensive in distant consuming states in the south and east.
Mandis and Middlemen
Wholesale markets, or Agricultural Produce Market Committees (APMCs), are a critical but often controversial part of the supply chain. Established to protect farmers, these mandis are where price discovery is supposed to happen through auctions. However, these markets can also be controlled by cartels of traders who can hoard stock to create artificial scarcity or add multiple layers of commissions, inflating the price before the onions even leave the wholesale yard. This means that even when a farmer sells their produce at a low price, the consumer may end up paying a much higher amount due to the markups added by intermediaries.
The Storage Crisis
India produces more onions than it consumes annually, so in theory, there should be no shortage. The problem lies in storage. A significant portion of post-harvest losses, which can be as high as 30-40%, occurs due to inadequate storage facilities. Most farmers rely on traditional, poorly ventilated structures. During periods of high humidity or unexpected rain, moisture can lead to rot and spoilage on a massive scale. Without sufficient access to modern cold storage, the country is unable to effectively buffer the supply of Rabi onions to meet demand during the leaner Kharif season, leading to predictable price spikes.
The Hand of Government
Given how sensitive onion prices are politically, the government often steps in to manage them. These interventions can include imposing stock limits on traders to prevent hoarding, banning exports to increase domestic availability, or importing onions to cool down prices. The government also releases buffer stocks through agencies like NAFED at subsidised rates. While intended to provide relief to consumers, these policy measures can sometimes create market uncertainty for farmers and traders, impacting planting decisions and future supply.
