West Indies finally got their act together to snatch an upset 16-run victory over world champions India to keep themselves afloat in the five-match series in Ahmedabad on Monday.Chasing a competitive 261, Rohit Sharma struck a classy 95 but the Indians lacked firepower to overhaul the target and were ultimately bowled out for 244 in 46.5 overs.The last wicket pair of Abhimanyu Mithun (23) and Umesh Yadav (11 not out) raised hopes of unlikely win with 28-run stand after India were reduced to 216 for nine in 43.3 overs.But it was not be as West Indies' most impressive bowler Ravi Rampaul (4/57) trapped Mithun plumb in front of the wicket to end India's winning streak.Sharma, whose 100-ball knock was laced with 10 fours and a six, and Ravichandran Ashwin (31 in 64 balls) put on a defiant stand of 91 in 115 balls to keep India in the hunt after a top-order collapse that saw India lose half of their side with only 84 on board by the 16th over.Sharma was brilliantly by run out West Indies skipper Darren Sammy with a direct hit four overs later to tilt the balance of the match.Mithun, who struck two fours and as many sixes, and Yadav brought India closer to an improbable win but in the end it was not enough as West Indies clawed their way back into the series.The fourth ODI of the series is slated to be held on December 8 at Indore and the final game at Chennai on DecemberBrief Scores:West Indies: 260 for five in 50 overs (Marlon Samuels 58, Darren Sammy 41 not out, Andre Russell 40 not out; R Vinay Kumar 2/39).India: 244 all out in 46.5 overs (Rohit Sharma 95, Parthiv Patel 39; Ravi Rampaul 4/57, Sunil Narine 2/34).