Net interest income – the difference between interest earned on loans and that paid on deposits – a key source of income for banks, grew 9% year-on-year to ₹13,483 crore. Net interest margins for the September quarter basis eased to 3.99% against 4.11% a year ago. Net interest income – the difference between interest earned on loans and that paid on deposits – a key source of income for banks, grew 9% year-on-year to ₹13,483 crore. Net interest margins for the September quarter basis eased to 3.99% against 4.11% a year ago. Economic Times