Joypurhat Sugar Mill could not start its 2013-14 season's cane crushing yesterday due to continuous blockade programme of BNP led 18-party alliances.
Dinajpur Sugar Mill also faced a similar uncertainty due to the political unrest, authorities said.
However, both the mills yesterday fixed their cane crushing date on December 13.
The mill authorities decided to suspend their operation for a week considering the security and risk of cane growers during the blockade programme of the opposition,  said Abdus Salam, managing director of Joypurhat Sugar Mill.
On the other hand, the farmers expressed the fear that if their cane remains in the field for long, it would lose both quality and weight.
According to Joypurhat Sugar Mill officials, the mill had a traget to crush nearly 1,00,000 metric tonnes of sugarcane this season to produce around 7,000 metric tonnes sugar.
Dinajpur Sugar Mill, located in Bochaganj upazila of Dinajpur, had targeted to crush 60,000 metric tonnes of sugarcane to produce around 6,525 sugar, officials said.
The operational time of both the sugar mills was 60 days, they said.
Meanwhile, sugar worth Tk. 70 crore of Dinajpur and Joypurhat Sugar Mills remained unsold for lack of buyers.
Officials said, Joypurhat Sugar Mill has 7,446 metric tonnes of unsold sugar worth Tk. 37 crore while Dinajpur Sugar Mill has 6,707 metric tonnes of unsold sugar worth Tk. 33 crore produced during the last crushing season.
The mills apprehend that they will face space problem with the starting of cane crushing season. Both the mills have a total warehouse capacity of around 10,000 metric tonnes, officials said.
The authorities claim that the dealers are not interested to lift sugar from these sugar mills as imported refined sugar is available in the local market at  cheaper rates.
The unsold sugar has already created financial problems at the sugar mills.
The mills could not make payment to cane growers, officials and workers of last season for fund shortage as sugar remained unsold, officials said.
The two sugar mills have to bear a burden of at least Tk. 200 crore loss, they said.