"We had sought a report from the district authorities, who said the complaints could not be substantiated," additional chief electoral officer Dibyendu Sarkar said.
The CPI-M had yesterday complained to the Election Commission, alleging that Adhikari had held a meeting on May 1 at a college at Panskura in East Midnapore district with officers-in charge of Moyna, Haldia, Marishda, Ramnagar and Panskura police stations.
The poll panel said the ban on publication of exit polls will remain till 6.30 PM of May 16.
This is being done because polling will be held in Tamil Nadu, Kerala and Puducherry in a single phase on May 16.