Opener Chris Gayle bludgeoned his way to an astonishing 57-ball 117 as Royal Challengers Bangalore hammered Kings XI Punjab by 138 runs in an Indian Premier League (IPL) cricket match.Punjab paid a heavy price for dropping Gayle twice on 27 and 53 as the left-handed Caribbean went on to hit his fifth IPL century and led his side to a mammoth 226 for three.It was a humongous task for a demoralised Punjab to chase such a total and they capitulated under pressure. All they managed was just 88 in 13.4 overs.It was second biggest win in IPL history by run-margin, only behind Kolkata Knight Riders's 140-run victory over RCB in the 2008 edition.Royal Challengers Bangalore player Chris Gayle plays a shot during IPL 8 match against Kings XI Punjab in Bengaluru.