The labourers were engaged in sowing work at a farm in Wadgaon village under Koparna taluka of the district when lightning struck them last evening, Range police said.
There was a heavy downpour accompanied with lightning and high velocity winds. The six labourers took shelter in a nearby hut where lightning struck them.
All of them died on the spot, police said.
The four others who sustained severe burn injuries were rushed to government's Primary Health Centre, they added.