Mithila Makhana GI Tag: Origin, Processing and Batch Records

Short answer: Mithila Makhana is the popped seed of the aquatic plant Euryale ferox, grown in ponds and wetlands of the Mithila region of north Bihar. It received a Geographical Indication tag in August 2022, registered in the name of the Mithilanchal Makhana Utpadak Sangh (BOOM, 22 Aug 2022). The tag protects the name. It does not tell a buyer whether a given bag came from Mithila. A per-batch record of pond, harvest, popping and grading is what answers that.

What Mithila makhana is

Makhana, also sold as fox nut or gorgon nut, is the seed of Euryale ferox, an aquatic crop grown in shallow ponds, lakes and wetlands. The seed is roasted and popped into the light white puff sold in shops (PIB backgrounder, Aug 2026).

Bihar dominates the crop. The same PIB backgrounder says Bihar produces nearly three-fourths of India's makhana and around 80–85% of global supply. It gives Bihar's 2025–26 production as 60,000 tonnes out of a national 80,590 tonnes (second advance estimates). ICAR puts Bihar's makhana area at about 15,000 hectares of water bodies, with about 5 lakh families involved in growing, harvesting, popping and selling it (ICAR).

Improved varieties such as Swarna Vaidehi and Sabour Makhana-1, and a shift from ponds to field systems in some areas, have raised yields (PIB backgrounder).

GI status

• What was registered: "Mithila Makhana", as a GI for makhana from the Mithila region of Bihar.
• When: the grant was announced in August 2022 by the Union Commerce Minister (BOOM).
• Registered proprietor: Mithilanchal Makhana Utpadak Sangh, as named on the GI certificate (BOOM).
• Government recognition: the PIB's 2026 makhana backgrounder confirms the tag "recognizing the unique quality, reputation, and traditional knowledge associated with makhana produced in the Mithila region of Bihar" (PIB).

A GI registration in India lasts 10 years and can be renewed. To use the name commercially as a producer, check the authorised-user rules on the GI Registry public search. Do not rely on a news report for that.

The sector also has new institutions. A National Makhana Board was announced in the Union Budget 2025–26 and launched in Bihar on 15 September 2025. A Central Sector Scheme for makhana has an outlay of ₹476.03 crore for 2025–26 to 2030–31 (PIB).

How it is harvested and processed

Harvest. Seeds are collected by hand from the bottom of the pond. PIB describes this as highly labour-intensive, skilled work done underwater, with little mechanisation (PIB).

Primary processing. The raw seeds are cleaned and dried, mostly at household or village level (PIB).

Popping. ICAR describes the traditional method in three stages (ICAR):

1. Seeds are roasted in an earthen pot or cast-iron pan at 250–320°C.
2. They are tempered for 2–3 days.
3. They are roasted again and struck by hand with a mallet so the kernel pops out of the hard shell.

The timing is skilled work. ICAR notes that a delay of a few seconds in malleting leads to poor-quality makhana. ICAR-CIPHET in Ludhiana has developed and commercialised a mechanised line covering threshing, cleaning, grading, drying, roasting and popping. ICAR says it cuts processing time from 2–3 days to about 20 hours, and that machine-popped makhana fetches at least ₹50 per kg more than the traditional product.

Grading and packing. After popping, makhana is polished, sorted and graded by size and quality. Larger, better pieces fetch higher prices (PIB). Value-added lines now include flavoured snacks and makhana flour.

Questions buyers ask

Exports are growing. In August 2026 the Commerce Minister reported the first 18-tonne shipment of GI-tagged Mithila Makhana from Bihar to Australia, sourced directly from farmers in Darbhanga (All India Radio News). As the market widens, buyers ask questions a label cannot answer alone:

• Is it really from Mithila? Which district, village and pond or field did this lot come from?
• Who grew and who popped it? Growers and poppers are often different people, and a lot may pass through traders in between.
• Hand-popped or machine-popped? Some buyers prefer one method, and the two differ in price.
• What grade? Size grade and how it was sorted.
• When? Harvest date, popping date and packing date, which matter for freshness.
• What tests? Any lab report the buyer requires, with the lab's name and the date.

What to record per batch

A useful batch record follows the lot from pond to pack. For each lot, record:

Recording quantity at each step lets you check that what comes out roughly matches what went in. A lot that grows between drying and packing is a lot that needs a question.

A QR code on the pack can then open a public trace page showing that record. With IndiTrace, each confirmed record is also fingerprinted on Polygon, which shows it was not edited later, though not that the entries are true. Our explainer on what blockchain verifies covers that limit. For pricing per batch, see IndiTrace pricing.

Questions

Q: When did Mithila Makhana get its GI tag? The grant was announced in August 2022. The registered proprietor is the Mithilanchal Makhana Utpadak Sangh.

Q: Does a GI tag on a pack prove the makhana is from Mithila? No. The GI protects the name in law. It does not prove where a particular bag came from. Batch records and supporting documents are what show that.

Q: How is makhana popped? Traditionally, dried seeds are roasted at 250–320°C, tempered for 2–3 days, roasted again and cracked open with a mallet. ICAR-CIPHET has also developed a mechanised popping line.

Q: What should a makhana seller record for each batch? The grower and pond location, harvest date, drying and popping details, grade, each change of custody with quantities, and any lab reports and certificates.