Within 24-hours of kidnapping a nephew of an Ariyalur Congress MLA, his abductors let him off on Tuesday, fearing police action. P. Kowsik, first-year B.Tech student of a private engineering college, was whisked away in a van by a three-member gang from the Erode bus stand on Monday evening. His father Palanisamy is the brother of Congress MLA Amaramurthy. All check posts and mobile patrol vehicles were immediately alerted. Noticing the police movement, the kidnappers let off Kowsik on Oyyamari Road and fled.