Making hard work of its three-wicket win over India at the Champions Trophy, the West Indies lost four wickets in the last 13 balls before winning with two balls to spare.
India struggled its way to 9-223 in its 50 overs, several times losing wickets in clusters to undo good recovery work.
At 3-69 with hard hitters Virender Sehwag (17) and Sachin Tendulkar (29) back in the pavilion, it was left to Rahul Dravid and Yuvraj Singh to recover the situation.
They added 61 runs before Yuvraj, on 27, played a uppish shot to mid-off, but then one run later disaster threatened when Dravid was run out for 49 after Dwayne Smith executed a superb pick up and throw from square leg which found Dravid well short.
Mahendra Dhoni and Harbhajan Singh added another 49 runs before Harbhajan, on 15, edged the ball onto his wicket. Dhoni was a victim of the latter overs and the need for runs and his innings of 51 ended when he was run out attempting a second run.
Ian Bradshaw was the pick of the West Indies' bowlers taking 3-30 from 10 overs while Jerome Taylor's pace was useful as he took 2-33.
Chris Gayle launched an early attack that gave the West Indies batting some early initiative, a task aided by poor bowling from Irfan Pathan.
He scored 34 off 37 balls before departing, first dismissed, at 43. Another 57 runs came for the second wicket as Shivnarine Chanderpaul hit 51 in a stand with Dwayne Bravo (16).
It was the West Indies' ability to put together partnerships that the Indians couldn't that gave it every chance of victory.
Ramnaresh Sarwan supported the top order with 53 before he was run out and then Runako Morton hit 45. But that was the prelude to the drama of the last overs.
When Brian Lara eventually came out at No. 6, the West Indies needed 12 runs from 13 balls. A boundary off Pathan made the prospect of a win all the more likely.
However, an attempted cut shot saw him play the ball on. Then Marlon Samuels provided a double play to Dravid at mid-wicket. Dravid couldn't take the difficult chance for a catch, but he did get the ball back to the bowler to run out Sarwan.
Going into the last over, five runs were needed and Agit Agarkar's first ball yorker bowled Dwayne Smith. Carlton Baugh hit a single and it was left to Samuels was able to cut a short ball for four and the win.
If India is to gain a semi-finals place it will need to beat Australia, while the West Indies win has shut England out of its remote chance of a place.
