Erasing initial losses, the Sensex at the Bombay Stock Exchange was trading 11 points in the positive territory at 16,178 when reports last came in. The 30-share index had dropped by over 122 points in early trade today.The NSE's 50-share Nifty index was up by 7 points at 4,859.In the Asian region, key benchmark indices in China, Hong Kong, Japan, Indonesia, South Korea and Taiwan were up between 0.55 per cent and 1.59 per cent, while Singapore's Straits Times Index was down 0.2 per cent.