The stock plunged 15.57 per cent to Rs 29.55 -- its 52- week low -- on BSE.
On NSE, it fell 15.57 per cent to hit its one-year low of Rs 29.55.
The Chennai-based bank had logged a net loss of Rs 245.51 crore in the same period of the previous year, the lender said in a BSE filing.
For the half-year period ended September 30, net loss stood at Rs 536.07 crore as against a net profit of Rs 26.21 crore a year ago.