In the IPL match at Ahmedabad today, a rampaging Rajasthan Royals thrashed Chennai Super Kings by eight wickets. Chasing 157 runs for a win at their adopted home ground at Motera, Rajasthan Royals rode on a 144-run record opening stand between Skipper Shane Watson and Ajinkya Rahane to canter home in 18.2 overs.While Watson was out for 73, Rahane remained unbeaten on 76. For Rajasthan, it is their fifth win in as many matches. For Chennai team, it is their first defeat in four games.In the other IPL encounter at Bengaluru, sent in to bat, Mumbai Indians were 114 for 1 in 13 overs against Royal Challengers Bangalore.