The affected unions are Magura Binod, Baogaon, Madhainagar and Saguna
Boro crops on around 12,000 hectares of land in four unions of Tarash upazila went under water due to waterlogging caused by heavy rains.
The affected unions are Magura Binod, Baogaon, Madhainagar and Saguna, said Saiful Islam, an agriculture officer of Tarash upazila.
The cropland was submerged as water could not be removed following unplanned construction work of bridges, culverts, as well as housing, he added.
The farmers are afraid of harvesting paddy from the field as leech breeds in the water due to prolonged waterlogging.
Besides, day labourers were demanding high wages for harvesting paddy from the water body.
Around 22,000 hectares of land have been brought under boro cultivation in eight unions of the upazila, though the target was set around 21,000 hectares.