Bangladesh will have to take part in the qualifying round at the 2021 event starting in the United Arab Emirates and Oman on Sunday. But Shakib believes the recent wins in Dhaka have toughened the side at the right time.

"I think we have a good chance in the World Cup. We had a good preparation. The big reason for this is that we won those three series," said Shakib.

"When a team keeps winning, it builds a winning mentality, it takes confidence to a new level."

The Tigers go into qualifying against Scotland, Oman, and Papua New Guinea seeking one of two places to take part in the main Super 12 competition.

Now sixth in the ICC Twenty20 rankings, they are among the favorites to get through.

- T20 struggle -

Bangladesh has also discovered a new generation of batters in Mohammad Naim, Liton Das, Soumya Sarkar and Mushfiqur Rahim to back captain Mahmudullah Riyad.

But the wins against Australia and New Zealand were against weakened touring sides on slow pitches that perfectly suited Bangladesh's game.

And not everyone is optimistic about Bangladesh's improved showing having an effect at the World Cup.

"We have not won a game in the main round since 2007. I can only hope that this situation will change this time," former captain Mohammad Ashraful told AFP.

"I am expecting two wins against Afghanistan and Ireland (if they qualify). Anything more than this will be a big achievement," he said.

Ashraful, a man of the match in Bangladesh's World Cup win over West Indies in 2007, played down the importance of the wins over Australia (4-1) and New Zealand (3-2).

"Australia and New Zealand sent weak teams, none had their main batsmen, yet we also lost matches to them," he said.

"We got the wins but no batsman scored a hundred or a bowler got five wickets.

"A win always gives you confidence. But I did not see any individual performance. The bowlers did well but I don't think we will get this kind of wicket in the UAE."

Bangladesh beat Australia, who were without captain Aaron Finch and other key players, 4-1 in August before posting a 3-2 win against New Zealand next month.

New Zealand had none of their World Cup players.

Ashraful is among those who remember how Bangladesh started with a bang in T20 internationals, winning three of their first four games before getting stuck in the bottom half of the rankings.

Bangladesh's passionate fans want to see the much-loved Shakib and his teammates turn words into actions at this World Cup.