Job left with loan outstanding

Sir, i left job from a private limited company suddenly with some force of that management only due to my personal issue, they thought that it would effect to company so they asked to resign me. (only personal issue not company related issue) But point is now there was a some loan taken in company now they send me formal loan outstanding detail (something fishy in calculation of course ), anyhow i have never signed on a agreement or on any paper or anywhere that i have taken loam, but there is a direct transfer from organisation account same as salary credit, Now my query is there any chance that they can go for legal? If they do what proof they may show or in which way they can produce?