"I reject all allegations. This is an attack on the entire Sri Lankan umpiring fraternity by an external force," Dissanayaka told reporters.
He said that he had already written to local cricket authorities and is open to thorough investigation in order to prove his innocence.
'India TV' news channel named Dissanayaka and two of his colleagues Sagara Gallage and Winston de la Zilwa as having allegedly consented for match-fixing during the just concluded world T20 championshp.
Gallage and De La Zilwa were not available for comment. Dissanayaka was quoted during 'India TV's' sting operation that buying liquor for Sri Lankan Cricket officials would clinch any deal with them.