DBS Bank India unit, arm of DBS of Singapore, has reported a 164 per cent increase in net profit at Rs 335 crore for FY12 from Rs 127.2 crore for FY11 on improvement in interest margins. Its total income rose by 86 per cent to Rs 1,063 crore in year ended March 2012 from Rs 571.2 crore in 2010-11. Its net interest margin (NIM) for FY12 stood at 3.24 per cent, up from 2.86 per cent for FY11.