"We had purchased 9,36,254 quintals of onion at Rs 6 per kg from 36,136 farmers from June 4 onwards. Today we issued tenders for its sale," Madhya Pradesh State Co-operative Marketing Federation's general manager (procurement) Yogesh Joshi said.
The last date for bidding is June 30.
After the onion prices crashed and in some places farmers threw away the produce, Chief Minister Shivraj Singh Chouhan on June 1 had announced purchase at Rs 6 per kg.