Shares of public sector undertaking (PSU) banks continue at their upward march, trading higher by up to 12% second day in a row on the National Stock Exchange (NSE). The NSE state-owned bank index CNX PSU Bank has surged 4.4% as compared to 0.30% rise in benchmark CNX Nifty and 1.26% gain in Bank Nifty at 1125 hours. CNX PSU Bank index has rallied almost 12% in past two trading sessions to 2,591 from 2,311 on Wednesday, after select banks reported better-than-expected earnings for the quarter ended September 2013 (Q2). Corporation Bank, Oriental Bank of Commerce, Bank of India, Dena Bank, Indian Bank, Union Bank of India, Punjab National Bank, Bank of Baroda, Andhra Bank and Canara Bank are up 6-12%, while Syndicate Bank, Indian Overseas Bank, Allahabad Bank, IDBI Bank and State Bank of India are trading higher by 3-5% on NSE.