Highly-placed sources in the Commission said the report was sent by the CEO last night and the poll panel will discuss the issue tomorrow.
But a final decision may be arrived on Friday when the 'full Commission' meets. The 'full Commission' meets every Tuesday and Friday to discuss latest issues.
On June 3, the EC had asked CEO Karnataka to provide a report on the "facts of the matter".
The 'full Commission' incidentally could not meet today as some senior officials, including its legal brains, were to attend a meeting of Parliamentary Standing Committee on Law and Personnel.
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The sting by two channels on June 2 had purportedly showed MLAs negotiating a money deal in exchange for their votes in the biennial elections to four Rajya Sabha seats from the state.
Five candidates are in the fray for the elections to the four seats.
The Congress had yesterday approached the Commission pleading against countermanding the election to the four seats from Karnataka in the backdrop of the "sting operations".