"CPI(M) amassed thousands of crores of rupees in property. Propertywise, CPI(M) now ranks next to Congress and BJP," Banerjee told a Trinamool Congress rally here.
The chief minster said an inquiry would be made to ascertain which party had "benami property and trusts."
The chief minister also claimed had not Trinamool Congress come to power, many more investors would have been duped by chitfunds.
"We have formulated a strong law to curb chitfunds," she said.
"Enough is enough, I will ask investors not to keep funds in chitfunds," she added.