New Delhi: Private sector lender South Indian Bank Saturday posted a 27 per cent decline in net profit at Rs 83.85 crore for third quarter ended December 31, 2018.The bank had recorded a net profit of Rs 115 crore in corresponding period of previous financial year.Total income of lender, however, improved to Rs 1,921.93 crore during quarter under review, as against Rs 1,735.77 crore in year-ago period, South Indian Bank said in a regulatory filing.Gross non-performing assets (NPAs) rose to 4.88 per cent of total advances, compared to 3.40 per cent at end of third quarter of 2017-18.Net NPAs also increased to 3.54 per cent in October-December 2018 from 2.35 per cent a year ago.