Janakpur, July 10 -- Nearly 400 victims of predatory lending from across Nepal began another march to Kathmandu on Thursday, saying the government has failed to implement past agreements and that loan sharks continue to harass borrowers.

Among them is Chandeshwar Prasad Mandal of ward 9 in Ramgopalpur Municipality of Mahottari district, who borrowed Rs80,000 on April 3, 2014, from local moneylender Ran Kishor Yadav to cover medical expenses after an accident.

The interest mounted so rapidly that Mandal eventually agreed to pay Rs520,000 to settle the debt. Even after making the payment in the presence of officials at the Mahottari District Administration Office, he says his ordeal did not end.

According to Mandal, the lender later sued...