Dubai - Shikhar Dhawan scored his maiden T20 century while Axar Patel knocked off the required 17 runs off the last over with ease as Delhi Capitals beat Chennai Super Kings by five wickets at the Sharjah Cricket Stadium, while Royal Challengers Bangalore (RCB) on Saturday beat Rajasthan Royals (RR) by seven wickets, thanks to an unbeaten 22-ball 55 from AB de Villiers at the Dubai International Stadium.