Second Test, Mirpur, day one (close):
Bangladesh 330-8 v England
Coverage: Ball-by-ball Test Match Special commentary on BBC 5 live sports extra, BBC Radio 4 Long Wave & BBC Sport website (from 0315 GMT); live text commentary on BBC Sport website & mobiles; also live on Sky Sports
Tredwell captured the two crucial wickets on his first day in Test cricket
Bangladesh scored 330-8 in an absorbing start to the second Test with England.
Tamim Iqbal, on his 21st birthday, was set to become the fifth man to score a century in the first session of a Test match, having fired 13 fours and a six.
But he fell for 85 from 71 balls to debutant James Tredwell, and when the spinner ousted Shakib Al Hasan in the first over after tea it was 254-6.
Tredwell and Graeme Swann, who took 3-94, bowled 59 overs between them, and several batsmen fell after good starts.
It is rare that a match scenario proves so difficult to determine, but England can perhaps claim to have had the better of things given the spectacular start made by Tamim, and a host of promising partnerships that failed to develop significantly.
One thing not in doubt was the toss and it quickly became apparent that it was a good one for Bangladesh to win in extreme early morning heat.
There was no swing or seam to encourage England's opening bowlers on a much drier surface than seen at the first Test in Chittagong.
Tamim, in irresistible mood, did even less to encourage them and after two overs the dazzling left-hander had already accumulated 17.
He thumped Tim Bresnan's opening delivery in cavalier fashion through the covers for four, but in attempting to punch the next ball into a similar area was fortunate that a thick edge flew between Paul Collingwood's fingers at second slip through sheer speed and force.
By the fifth over there was a deep point in place and spinner Swann was brought on after half an hour, but his second ball was slashed to the boundary and another four brought up the Bangladesh 50.
Tamim had raced to 35 when he dragged a slower ball from Stuart Broad to mid-on but Alastair Cook, having parried the ball above his head, could not pouch a fairly routine rebound.
Two balls later and Imrul Kayes looped a drive at another disguised delivery into the off-side, where Steve Finn swooped to his right to pouch the dipping ball.
Tamim's philosophy did not alter one iota, and he reached his half century from just 34 balls with three successive fours off Swann.
He then eclipsed that by skipping down the pitch to hoik the next ball for six over mid-wicket as 20 came from the over, Swann conceding 37 from his opening four.
Finn went for two fours in his first over and successive sweeps off Swann found the boundary, with England grateful for the chance to reassess over a reviving drink, the home side amassing 95-1 in the first hour, 74 of them scored by Tamim.
It was not all bludgeoning strokes from Tamim, however, and some deft sweeps took him into the 80's in just the 16th over.
Iqbal electrified the contest with a stunning display in the opening stages
With Tamim in full flow and the score at 114-1 it was not perhaps the time Tredwell would have chosen for his first spell in Test cricket, having come into the team at the expense of Michael Carberry, who was omitted after scores of 30 and 34 in the first match.
Tredwell was fortunate to have the more circumspect Junaid Siddique on strike but scurried through his deliveries admirably, displaying great accuracy to concede just two singles from his opening three overs.
Many scoring records have been shattered in recent years but more than two decades have passed since Pakistan's Majid Khan struck a century before lunch against New Zealand in Karachi.
Tamim had time to achieve that with just the occasional single but Tredwell dismissed him, although replays showed the ball may well have hit nothing but his forearm as it looped up behind square where wicketkeeper Matt Prior moved smartly round to take the catch.
Swann soon recovered the guile that has propelled him to second in the world rankings, finding some extra turn to pin debutant Jahurual Islam lbw for nought, the sixth Bangladesh player to fail to trouble the scorers in his first match.
Having built some pressure England relinquished it as Broad conceded three boundaries to the left-hander Siddique in the third over of the afternoon session.
Cook soon decided that spin from both ends was the best policy and the indispensable Swann got one to drift in and then spin away to trap Siddique.
After the onslaught from Tamim it was inevitable that runs would not flow as freely, but the 200 still arrived in reasonable time in the 49th over and Madmudullah completed an assured fourth Test fifty in only his seventh match with an elegant drive to the cover boundary off Swann.
He drove the first ball of a new spell from Finn straight to backward point but Shakib continued to keep the scoreboard moving with some particularly stylish shots through the offside, before making no contact with an attempted sweep on middle stump.
Mushfiqur Rahim revived the innings again by first lofting Tredwell for a sublime straight six, then backing away to cut through point for four, but was reprieved on 29 when Prior could not get his gloves to a thick edge that deviated appreciably.
The diminutive Bangladesh wicketkeeper added only one more run in eight overs but just when his team looked to be moving towards a strong position, Bresnan returned with the new ball and produced a beauty that left Mushfiqur and caught the edge, giving Prior a far more straightforward catch.
Naeem Islam remained unbeaten on 33, another batsman to play freely with an abundance of style, but Bangladesh will hope the pretty cameos can translate into more substantial scores as they seek to level the two-match series at 1-1.