Monthly auto sales and Purchasing Managers’ Index (PMI) data for manufacturing and services sectors would also influence trading in the market, they added. Benchmark BSE Sensex tumbled 1,538.64 points or 2.52 per cent last week amid concerns that the US Federal Reserve might raise interest rates further to curb inflation. Fresh foreign fund outflows also dented investor sentiments. Pressurised by weak global cues, most sectoral indices traded in sync with the benchmark and ended lower.