“She paid a monthly interest of Rs 12,500 over the last few months. Recently, she came forth to return the borrowed money, however, Vijayakumar demanded Rs four lakhs and blackmailed to pursue a legal case by using the cheque given to him. He also threatened to murder her, if she did not give the demanded money,” police said.

Based on a complaint, the Sulur police registered a case and arrested the accused, and further inquiries are on.