India, Dec. 6 -- Indian equity markets, after making a gap-down opening, extended their losses in early deals on Thursday, with Sensex and Nifty losing around a percent each, respectively, on heavy sell-off in metal and oil stocks ahead of the Organisation of the Petroleum Exporting Countries (OPEC) meeting to discuss production policy, amid weakness in other Asian markets on growing uncertainty about the global economy. Besides, on a net basis, foreign portfolio investors (FPIs) sold shares worth Rs 357.82 crore on Wednesday, and domestic institutional investors (DIIs) were net sellers to the tune of Rs 791.59 crore, provisional data available with BSE showed. Traders failed to take any sense of relief with Finance Minister Arun Jaitley's ...