A benchmark index of Indian equities markets, the 30-scrip Sensitive Index (Sensex), on Wednesday was trading flat at 4.95 points or 0.02 percent down as auto stocks slipped.The wider 50-scrip Nifty of the National Stock Exchange (NSE) was also trading flat at 2.95 points or 0.03 percent down at 8,720.35 points.The markets were trading flat despite the foreign direct investment (FDI) statistics issued by department of industrial policy and promotion (DIPP) on Tuesday saying the FDI inflows during January 2015 stood at $4.48 billion up from $2.18 billion received in January 2014, which is a rise of 105 percent.The Sensex of the S&P Bombay Stock Exchange (BSE), which opened at 28,766.87 points, was trading at 28,731.43 points (at 9.24 a.m.) in the early session, down 4.95 points or 0.02 percent from the previous day's close at 28,736.38 points.The Sensex has touched a high of 28,806.97 points and a low of 28,676.40 points in the trade so far.Good buying was observed in healthcare and metal sectors, while selling pressure was seen in auto sector.