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This could be a major blow to the South Asian country, which has historically relied on imports to cope with shortages caused by natural disasters such as floods or drought.
The nation's farmers, though, have recently been struggling to secure fair prices for their produce amid a surplus of the grain, with no overseas deals in sight since the country lifted an export ban in May to support the market.
The flooding triggered by heavy monsoon rains has killed at least 108 people and affected more than 6 million people in Bangladesh and damaged other crops, mostly in the northern region.
Comment: Erratic seasons and extreme weather devastating crops around the world
Crop and cattle losses are on the rise everywhere, whether it is due to extensive drought, massive hail, epic flooding, huge dust storms, unexpected frosts, and even epidemics.