The searches were conducted at the premises of Lakhani Caterer, Trupti Caterer, Amrut Caterer, Jyoti Caterer, and Chetak Caterer yesterday.
"It was found that most of these service providers had carried out transactions in cash and not recorded them in books of accounts, for evading tax payment," said an official.
Rs 2 crore in deposits were collected from them.
In the past one month, officials have recovered over Rs 2 crore of evaded tax from various service providers in the city.
The crack-down on service providers at big events would intensify in the coming months as the department now had a database of service providers, sources said.