The raids were conducted at five places, three in Jaipur, one in Todaraisingh in Rajasthan's Tonk district, and in Lucknow, a CBI official said.
A team of 35 sleuths led by CBI Superintendent of Police R D Kallia conducted the searches.
Dixit, who is the Director of Horticulture Department and Secretary of Rajasthan Tennis Association also, allegedly used his office for verifying the certificate of the history sheeter for securing the latter's passport in July 2007.
Ranjeet was nabbed at the Delhi airport the same year when he was trying to leave the country, the official said.
CBI sleuths were conducting extensive searches at Dixit's secretariat office, residence in Gandhinagar locality here, and at a place in Lucknow, he said.
Raids were also underway at Ranjeet's Todaraisingh house and Gopalpura area here, the official said.
The case against them was registered on the direction of the Rajasthan High Court. The high court order in the passport case was passed a fortnight ago, he added.