round performance by Shane Watson helped the Rajasthan Royals beat the Delhi Daredevils by three wickets besides keeping them at the top of the Indian Premier League standings here Sunday. Shane Warne again used the toss win to full effect when his bowlers tied down Delhi batsmen. The first six of the innings came in the 18th over. At the end of 17 overs, Delhi was 109 for 6. It was only when Farveez Maharoof and Tillakaratne Dilshan broke free that Delhi managed a total for its attack to defend. Watson first used the uneven bounce of the Jaipur pitch to keep the Daredevils in check, then batted as if it didn't exist to hit 74 off 40 balls and maintain the Rajasthan Royals' 100 percent record at home. Rajasthan in the end needed seven off 10 balls and Mahesh Rawat finished it off with five to spare. Delhi Daredevils - 156 for 7 (Maharoof 39, Watson 2-21, Trivedi 2-24); Rajasthan Royals - 159 for 7 (Watson 74). Ganguly inspires Kolkata In Hyderabad, Sourav Ganguly finally found his groove in the IPL when his 57-ball 91 lifted the Kolkata Knight Riders to a 23-run win over the Deccan Chargers. Ganguly's knock, coupled with a blinder from David Hussey, lifted Kolkata to an imposing 204. The Deccan Chargers, who collapsed to their seventh defeat in nine games, could score only 181-7. Kolkata batted steadily and built a platform: after 10 overs, it was 73-1. Later Hussey blitzed 57 off 29 balls in a 102-run partnership with Ganguly that came off eight overs. For Deccan the only hope was Adam Gilchrist, since Shahid Afridi was not in the lineup, but he only managed 24. Gibbs also went cheaply - for 5. Kolkata Knight Riders - 204 for 4 (Ganguly 91, Hussey 57*); Deccan Chargers - 181 for 7 (Venugopal 71*, Dinda 3