Highly-placed sources said the agency will decide whether the enquiry would be closed or it will be converted into an FIR thus starting a full-fledged investigation.
The sources declined to give out details saying a final call will be taken after analysing all records and evidence collected during the preliminary enquiry.
According to CBI, the PE was registered on issues of alleged irregularities in granting sanction to the MCX Stock Exchange (MCX-SX) by the Securities and Exchange Board of India in 2008 and renewing the recognition in 2009 and 2010.
MCX-SX was set up by Jignesh Shah-led Financial Technologies India Ltd (FTIL) and its commodity exchange arm MCX and began functioning as a full-fledged stock exchange last year after a prolonged battle with SEBI.
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An FTIL spokesperson had told PTI that "we will provide full cooperation to the authorities."
Reacting after the registeration of the PE, Bhave had claimed the agency was working with a "crazy logic" and has ignored the fact that the tax department itself found no merit in the case years ago.