The arrests were made during searches at the sports administrator's office in Delhi's Lodhi Road area, they said.
Questions sent to CFSL director Rajiv Giroti and Directorate of Forensic Sciences remained unanswered.
The diamantaire's counsel said there is a vigilance manual circular that the consortium can lodge only one FIR. Each consortium member cannot lodge separate FIRs, he said.
Pawar said in the last 10 years, people have voted Kejriwal to power, adding that Aam Aadmi Party ministers have been jailed and steps were being taken to arrest him as well.
Rajnath said the opposition parties were trying to cover up their own "mistakes and weaknesses".
The CBI inquiry was recommended on Delhi Chief Secretary's report filed earlier this month, showing prima facie violations of GNCTD Act 1991, Transaction of Business Rules (ToBR)-1993, Delhi Excise Act-2009 and Delhi Excise Rules-2010, they said.
Gahlot says he has no knowledge of Nair living in his official accommodation, AAP's Goa activities
National Conference (NC) president Farooq Abdullah did not appear before the Enforcement Directorate (ED) on Thursday for questioning in a money laundering case, official sources said.