Sensex, Nifty open lower on mixed global cues

Blitz Bureau NEW DELHI: The Indian equity indices opened in the red on May 15 as selling pressure was seen among heavyweights, like Power Grid, Kotak Mahindra Bank and Sun Pharma stocks. At 9:26 am, Sensex was down 208 points or 0.26 per cent at 81,122 and Nifty was down 54 points or 0.22 per…