Off-spinner Dilruwan Perera picked up five wickets as Sri Lanka thumped fragile Bangladesh by an innings and 248 runs in the first Test here today.
Bangladesh, trailing by a huge 498-run margin on first innings, were bowled out for 250 in their second knock after lunch on the fourth day at the Sher-e-Bangla stadium.
Perera, a 31-year-old playing in his second Test, finished with five for 109 while seamer Suranga Lakmal took three as the hosts were dismissed in 51.5 overs with a day to spare.
Bangladesh, who resumed the day at 35-1, failed to cope with Sri Lanka's pace and spin assault and lost their last nine wickets for 215 runs despite the even-paced pitch.
The hosts were reduced to 197-9 before the last-wicket pair of Rubel Hossain and Al-Amin Hossain boosted the total with lusty hitting during an entertaining partnership of 53 runs off 38 balls.
Rubel made 17, while Al Amin returned unbeaten on a quickfire 32 off 18 balls that contained four sixes and one boundary.
Bangladesh, who made 232 in their first innings, conceded their highest Test total of 730-6 declared. Three Sri Lankans hit centuries including Mahela Jayawardene, who scored an unbeaten double-ton.
Sri Lanka have now won 14 of their 15 Tests against Bangladesh, eight of them by an innings margin, and drawn the other.
On their previous tour in 2008-09, Sri Lanka had won the first Test by 107 runs and the second by 465 runs.
Bangladesh, who languish at the bottom of the Test rankings at number 10 -- lower than unfancied Zimbabwe -- have lost 68 of their 82 Tests since gaining full status in 2000.
They have won four Tests, two each against Zimbabwe and the West Indies.
