The 29-year-old Thanikodi, hailing from Kamudi in Ramanathapuram district, was working at Selvapuram and developed friendship with a 17-year-old girl, police said.
Promising to marry her, he allegedly sexually exploited her and left the city and fixed his marriage with another girl in his native place, a few months ago, police said.
The girl, who came to know about it, went to Kamudi and managed to prevent the marriage and lodged a complaint with the local police.