During the morning session, summer onions were auctioned at minimum Rs 4,000 per quintal and maximum Rs 11,000 a quintal, they said.
The average price was Rs 10,000-10,300 per quintal at the Kalwan APMC, the sources said.
Onions brought in 129 vehicles were auctioned at the APMC on Monday, they said.
In August, onion prices ranged between Rs 1,000-3,000 per quintal and the average price was Rs 2,400 per quintal.
The prices increased in September when they ranged between Rs 3,000-4,000 per quintal and the average price was Rs 3,200 per quintal.
In October, the maximum price increased to Rs 4,500 per quintal and the average price was Rs 3,800.
In November, the maximum price reached the Rs 9,000 a quintal mark, whereas the average price was Rs 4,900.
Meanwhile, at the Lasalgaon APMC, there was no auction of summer onions on Monday.
Instead, red onions brought in around 250 vehicles were auctioned at the Lasalgaon APMC, the country's largest wholesale onion market, the sources said.
The prices ranged between minimum Rs 3,000 per quintal to maximum Rs 8,401 per quintal and the average rate was Rs 7,100 a quintal.
The Rs 8,401 per quintal is the highest auction rate for red onions recorded at the Lasalgaon APMC this season. The previous highest price, Rs 6,565 a quintal, was recorded on last Saturday.
The prices of red onions at the APMC ranged between Rs 1,8006,565 per quintal and the average rate was Rs 5,001, the sources said.
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