Malan is playing all the shots now. He gets low to play a reverse sweep off Shakib, all double-jointed wrists. Four more.

OK, so now Mehidy Hasan is on. The OG, if you will. Malan greets him with a clip to the leg side for four. Then, when Malan opens the face the ball slides past short third for four more.

Michael Vaughan
Former England captain on BBC Test Match Special

Image source, Getty Images

A tidy over from Shakib. He's varying his pace. He is a class act.

England will be delighted with this start though, they've got that platform to get a big score here, these two will want to stick around for some time.

Shakib is 36, playing in his fifth World Cup. As you'd expect, he starts well. Just two singles from it. Powerplay done. The first 10 belong to England.

Rich Harle: Guessing all the "Butler 63" shirts in the crowd are knock-offs, otherwise somebody owes a lot of refunds!

Bangladesh need something here. Shakib Al Hasan bowled well against Afghanistan and is called upon here.

Michael Vaughan
Former England captain on BBC Test Match Special

Just putting the spinner under a huge amount of pressure. I'm really enjoying Malan's intent today.

Mahedi Hasan is bowling his off-breaks. Not to be confused with Mahedy Hasan, who had a day out with runs and wickets against Afghanistan. Either way, a single brings up the England 50, with Bairstow then flat-batting another cut to the off-side rope. Whisper is quietly, but this could messy. To prove the point, Malan cloths a straight drive for four more.

Image source, Getty Images

Jonny Bairstow is playing his 100th ODI today.

He becomes the 27th England men's player to reach the milestone. But how many of the other 26 can you name?

You can test your knowledge on England's other ODI century appearance makers using our interactive quiz here.

You can share your results with us on social media using #bbccricket.

Bairstow has been very strong through point. It's a poor delivery from Shoriful, which YJB absolutely larrups for four.

Matthew Henry
BBC Sport in Dharamshala

Not only is Dharamshala home to a beautiful cricket ground, it's also home to the Dalai Lama.

The temple is perched up on the hills, along some winding roads - shout out to my taxi driver Sonam!

The peaceful mountains and narrow streets feel a long way from the hectic roads of Delhi and Ahmedabad.

Score predictor is currently saying 340. The outfield is slow, but the pitch true and the ground small. England could fly if they get going.

Malan is purring. This time a low full toss is punched through mid-on for four. Mustafizur, usually so tricky, has gone for 28 from his for overs.

Eng 39-0published at 6.4 overs

6.4 overs

Excellent stuff from two lads in the crowd. England fans. Both with 'Butler' on the back of their, erm, replica shirts. I wonder which street trader has enticed them to part with their rupees for those. Malan is at it again. Same part of the ground, square on the leg side, this time with a meaty pull shot.

Michael Vaughan
Former England captain on BBC Test Match Special

That is Bairstow at his best, that has been dispatched.

One left-armer joins another. Shoriful Islam comes on, immediately nipping one back into the pads of Bairstow for half a shout. Just pitching outside leg. Bairstow, unrattled, drives in the air straight of mid-off for four.

Steven Finn
Former England bowler on BBC Test Match Special

Full again from Mustafizur looking for the pad of Malan but it is down the leg side. Malan just throws his hands at it and with it being the short boundary, it flies into the colourful seats in the crowd.

Eng 25-0published at 5 overs

5 overs

Good morning, sunshine. Something has awoken Dawid Malan. He drives for four, then picks up the first maximum of the day. An effortless clip off the toes into the Himalayan sky.