Three teams of Income Tax officials reached the residence of ward number nine councilor Mithali Saha in Kumartuli in North Kolkata and searched all three floors of the residence.

Saha is considered a very close confidant of Trinamool's sitting Lok Sabha member and Kolkata North candidate Sudip Bandopadhyay.

As per the latest information available, the search operation is being conducted based on the Income Tax Department's findings related to Saha's disproportionate assets.

It is also learned that Income Tax officials have been carrying out searches since Thursday afternoon, including at Saha's residence and the office of an advertising agency.

Trinamool leadership has raised questions on the timing of the search operation.