The benchmark Sensex and Nifty indices are likely to open on a positive note on March 2 as trends in the GIFT Nifty indicate a strong start for the broader index with a gain of 60 points. In a stellar session on March 1, the Indian benchmarks hit record highs, with the Nifty closing above 22,300 level. At close, the Sensex was up 1,245.05 points, or 1.72 percent, at 73,745.35.