Birthday boy Sanath Jayasuriya and fellow opener Kumar Sangakkara smashed centuries Monday as Sri Lanka marched into the final of Asia Cup with a crushing 158-run victory over Bangladesh in the Super Four match.

Defending champion Sri Lanka posted an imposing 332 for 8 from its 50 overs and then spinner Muttiah Muralitharan grabbed 5-3, his ninth five-wicket haul in One-Day Internationals to bundle out Bangladesh for 174 in 38.3 overs.

Sri Lanka carried forward two points from group matches and defeated Pakistan on Sunday to take its points tally to six. It will take on India in its last Super Four match Thursday, but the points are enough for them to qualify for the July 6 final.

Bangladesh is now out of the reckoning and will meet host Pakistan in its last Super Four match Friday. Jayasuriya celebrated his 39th birthday with an entertaining 130 off 88 balls while Sangakkara continued his supreme form with 121 off 128 deliveries his third One-Day International century in the last four matches.

“Both Sangakkara and Jayasuriya batted really well and made sure we qualify for the final and Murli (Muralitharan) was too hot for them to handle,” Sri Lanka captain Mahela Jayawardene said.

Bangladesh never looked like threatening Sri Lanka's total although Raqibul Hasan made a fighting 52 off 63 deliveries and opening batsman Nazimuddin made 47.

“At one stage it looked as if we were chasing 400-plus but we pulled it back to 330 in the end,” Bangladesh coach Jamie Siddons said. Bangladesh's bowlers had no answer as both left-handers shared an Asia Cup record opening stand of 201 runs off 169 balls.

Scores:

Sri Lanka 332/8 (Jayasuriya 130, Sangakkara 121)
Bangladesh 174 (Nazimuddin 47, R Hasan 52)