An hour into the day's last session, the Universities were 118 for five, 263 runs behind Bangladesh's first innings.

Tapash Baisya, who has struggled for control, claimed two wickets either side of tea but gave away 49 runs from eight overs including six no balls. The quickest of the lot Shahadat has been the most economical. The new-comer gave away just 11 from his seven overs and sent back highly-rated Essex batsman Adnan Akram (21) while senior partner Mashrafee was also impressive (one for 26 from nine).

Earlier, Mohammad Ashraful followed opener Javed Omar into recording the second century of the Tigers' innings but there was an agonising wait for the 20-year-old before his score was corrected from 99 to 102.

BBC online and agencies add: Ashraful was given out for 99 after a 139-ball innings featuring 18 fours.

But, having been on 87 overnight, he was convinced he had scored 15 further runs before being caught at fine leg.

And eventually the correct score of 102 was attributed to the batsman, who was the second best individual scorer in an excellent team total of 381.

Omar reached his best first-class score of 167 before Bangladesh were all out about 45 minutes after lunch.

The tourists began the day on 238-3 and wasted no time in improving the total despite overhead cloud cover offering assistance to the student bowlers.

Rajin Saleh struggled for 20 minutes before he drove Glen Read to Akram at cover, but Khaled Mashud provided Omar with useful support as they put on 56 for the sixth wicket.

They were parted immediately before the interval as Akram took his second catch of the morning to remove Mashud for 18 and give seamer Amit Suman his first success.

Suman finally ended Omar's six-and-a-half hours resistance and slow left-armer Monty Panesar was then left to pluck out three tail-enders.

The farce surrounding Ashraful's score was only resolved in mid-afternoon when it was discovered the scorers had missed a three hit by the batsman through mid-on.

Both the scoreboard operator and batsman himself recalled the missing stroke and the totals were then adjusted accordingly after discussions with umpires John Holder and Tim Robinson.

On the first day, Omar finished unbeaten on 111, having played a foil to the audacious Ashraful.

Omar carries a slow-scorer's image but on Tuesday by contrast, he fairly skipped along to his half-century, a change of mood which his team-mates put down to a visit to the Curry Mahal restaurant in Cambridge, where he had been accosted by a Bangladeshi well-wisher who had told him to get a move on.

He did just that against the students but then admitted he enjoyed his role of building a platform.

"It is not important what other people think, it is important for me and the team that I play within my limitations," said Omar. "If I get out and my team loses that is no good.

"If I bat for 10 or even 12 hours at Lord's and score a century I don't mind. I will like that if my team benefits. I have batted for a whole day before and it makes me happy to carry the innings.

"With our team recently, if someone plays badly it is covered by others in the team," he said. "This is a young side and we are getting better."