The bank's net profit stood at Rs 65.2 crore in the same quarter of the previous fiscal.
The total income of the bank also increased to Rs 1,620.7 crore during the April-June quarter, from Rs 1,480.5 crore in the same period of the last fiscal, South Indian Bank said in a regulatory filing to the stock exchanges.
Gross non-performing assets (NPAs), as a proportion of advances, deteriorated to 3.96 per cent in the first quarter as against 1.85 per cent in the same period last fiscal.
At the same time, provisioning for bad loans increased to Rs 114.1 crore in the June quarter, from Rs 79.5 crore in the same period last fiscal.