The country's largest lender SBI posted a standalone net loss of Rs 7,718.17 crore for the March quarter due to higher non-performing assets (NPAs).
The bank had reported a net profit of Rs 2,814.82 crore in the corresponding period of 2016-17.
Sequentially, the loss widened from Rs 2,416.37 crore in the third quarter ended December 2017.
Total income during the January-March quarter was up at Rs 68,436.06 crore, from Rs 57,720.07 crore in the same period a year earlier, the bank said in a regulatory filing.
Gross NPAs, as a percentage of gross loans, jumped to 10.91 per cent from 6.90 per cent at March-end 2017.