tirupur police on saturday arrested a 38yearold thumbalapatti village resident for killing his business rivalthe deceased was identified as k lakshimi 55 of thumbalapatti who was running a grocery shop she was returning from the kundadam market on her moped on saturday when a car mowed her down on the dharapuram palladam road near rudravathi though she was rushed to the dharapuram government hospital doctors declared her deaddistrict superintendent of police disha mittal dharapuram deputy superintendent of police jayaram and kundadam police inspector suresh inspected the crime spot police investigation revealed that p mayilsamy of thumbalapatti village a grocery shop owner was driving the carmayilsamy told police that he killed lakshimi over business rivalry the two used to have frequent quarrels police sources saidmayilsamy was remanded in judicial custody