Indian equity benchmarks Sensex and Nifty50 are likely to open higher on Monday, as the market resumes trading after a long weekend. At 8:10 am, Nifty futures trading on Singapore Exchange -- an early indicator of the Nifty50 index -- were up 65.5 points or 0.4 percent at 18,006. Last Thursday, the headline indices started the year Samvat 2078 on a positive note, rising half a percent each in a special, one-hour Muhurat trading session.