She consoled the Tigers on Friday saying everyone had seen what had happened.
Bangladeshi expatriates in Australia organised a reception for the national team.
Prime Minister Hasina called Bangladesh Cricket Board (BCB) President Nazmul Hassan during the function and greeted the players on the phone.
When Hassan connected a loudspeaker to the phone, Hasina said, “We would have won if the umpires did not give wrong decisions.
“In Sha Allah, Bangladesh will win in the future. Bangladesh will become world champions someday.”
She praised the cricketers for their performance in the tournament and hoped they would be able to carry forward the momentum they had in the World Cup.
Hasina told Mashrafe Bin Mortaza and his boys not to be upset.
“There’s nothing to be upset. Everyone has seen how we were made to lose. We will win in the future,” she said.
Bangladesh lost to India by 109 runs in the quarterfinal on Thursday.
Umpires Aleem Dar and Ian Gould took the controversial decision by calling a no-ball on the 40th over.
Rohit Sharma was caught by Imrul Kayes at the deep midwicket while trying to pull a full toss delivery from Rubel Hossain.
Dar from the square leg held the delivery to be over Rohit’s waist and Gould called it a no-ball.
TV replays, however, showed the ball was not over Rohit’s waist by any means.
Rohit added 47 runs after that to take India to 302 and completed his century.
Analysts and former cricketers criticised the decision. Fans in Bangladesh protested against the decision too.
ICC President AHM Mustafa Kamal also blamed the umpires for their alleged favouritism.
Hundreds of Bangladeshi expatriates in Australia attended the reception.
BCB President Hassan said ICC officials told him that they were stunned at Bangladesh’s performance in the World Cup.
Skipper Mashrafe said, “I came to this country several times to have my leg operated upon. I used to walk with a limp. This time I am returning after playing with my head high.”
He said they would never forget the support they got from the expatriates.
The expatriates took photos with their favourite cricketers.