Bilkish — Non payment of personal loan in UAE

Hi,
Three years before i'm working in uae that time i have a bank loan after my vacation i lost my job and i can't go back still i'm stuck here in india few days back on guy name satvir singh he said he is police man he is calling me he said there is an arrest warrant against me in delhi surrender my passport also and i just want to know the possibilities about this matter please.
Thank you.