Sarwan and Lara drove home the advantage created by Collymore with a 161-run stand for the third wicket as the West Indies comfortably chased a 212-run target to clinch the two-match series with more than two days to spare.

The opening Test at St Lucia had ended in a draw.

Lara hammered an unbeaten 80 and Sarwan a stroke-filled 82 to complete the job begun by Collymore, who finished with a career-best 7-57 to prevent Sri Lanka from setting a stiff fourth-innings target.

Sri Lanka were shot out for 194 in their second innings after resuming at 129-5, with Collymore taking the remaining five wickets for 31 in eight incisive overs to return the best figures by a West Indian at Sabina Park.

Only Englishmen Trevor Bailey (7-34 in 1954) and John Snow (7-49 in 1968), and West Indian Wes Hall (7-69 in 1960) had captured seven wickets at this venue before Collymore.

Sarwan and Lara batted resolutely to ensure their team did not repeat the first-innings mistakes when the hosts were dismissed for 191 in reply to Sri Lanka's 208.

The pair batted cautiously in the afternoon, but went on the rampage in the last session as they severely punished fast bowler Prabath Nissanka, who had wrecked the West Indies with five wickets in the first innings.

The West Indies plundered 92 runs off just 11.4 overs.

Lara began it when he hit Nissanka for two boundaries in an over and Sarwan continued it as he pulled the same bowler for a six and two fours in the next over.

Sarwan struck one six and 13 fours in his 110-ball knock for the 16th Test half-century, while Lara hit one six and nine fours in his 41st.

Sri Lanka's hopes of keeping pressure on the West Indies depended on key seamer Chaminda Vaas and off-spinner Muttiah Muralitharan, but both looked ineffective after sharing two early wickets.

Chris Gayle was trapped leg-before by Vaas, while Wavell Hinds (29) was bowled attempting to sweep Muralitharan.

Lara and Sarwan then did not allow the Sri Lankan bowlers to dominate with their robust knocks.

The morning session belonged to Collymore, a 25-year-old Barbadian who took his second successive haul of five or more scalps in a Test innings.

Collymore, who had taken five wickets in his comeback Test at St Lucia last week, looked virtually unplayable as none of the Sri Lankan batsmen could cope with his pace and bounce.

Playing only his third Test after making his debut against Australia four years ago, Collymore began the slide with his 10th delivery when he bowled last specialist batsman Hashan Tillakaratne for seven.

Vaas counter-attacked, pulling Collymore for two successive fours to add 35 off 27 balls for the seventh wicket with Kumar Dharmasena.

The tail-enders' flourish did not last long as Collymore had both Dharmasena (20) and Vaas (21) caught by Lara in the slips in a space of five deliveries.