Three umpires being investigated for corruption have denied the accusations made by an Indian television news channel.
India TV named six officials it claimed were willing to fix matches for money in the build-up to the World Twenty20, leading the International Cricket Council to confirm on Monday they were urgently looking into the matter.
"It is absolute rubbish," Bangladeshi umpire Nadir Shah told the BBC. "These people are setting up these things. Telling whatever they feel like. Once we knew that these people are crooked we backed out."
He added: "I didn't know it was a sting operation. Once I found out that these people are trying to fix matches I just backed out and left."
None of the umpires named by the TV station officiated in the World Twenty20.
Sri Lankan official Maurice Zilva echoed Shah's denial, telling the BBC: "All I have to say is that we are innocent of all these charges."
Compatriot Gamini Dissanayake was quoted by the Times of India as saying: "I reject all allegations. This is an attack on the entire Sri Lankan umpiring fraternity by an external force."
It is not the first controversy to hit cricket in recent years. Pakistan internationals Salman Butt, Mohammad Asif and Mohammad Amir were jailed in 2011 after being found guilty of bowling deliberate no-balls in a Test match.
In June this year Danish Kaneria was handed a life suspension and labelled "a grave danger to the game of cricket" by the England and Wales Cricket Board after being found guilty of two charges of ECB regulations.
Kaneria's former Essex team-mate Mervyn Westfield, who in February was sentenced to four months in prison after admitting a spot-fixing charge at the Old Bailey, was given a five-year ban after pleading guilty to one offence.
- International Cricket Council