A strike to protest the killings of villagers opposed to West Bengal's communist-ruled government shut down schools, offices and businesses on Monday...The strike was sparked by the killings in the last week of at least six villagers in Nandigram, a few hours drive southwest of Kolkata, as they battled communist supporters...Nandigram won national recognition by successfully opposing communist government plans to set up industry on farming land. But hostilities have not abated as the state's communist supporters tried to win back control of the village cluster.