The EOW is also exploring stringent legal options, which will make it mandatory for the suspects hiding abroad to turn up before investigators in Mumbai, police said.
"An SIT would be formed to speed up the investigation, which is moving at a snail's pace due the pile of other important cases," said a police officer.
The sensational Rs 5,600 crore scam at the controversial spot exchange NSEL is also being probed by the EOW.
"Some of the suspects are presently abroad and their statements are must to take the probe to the logical conclusion," the officer said.
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The EOW had arrested team persons, including Susan Chatterjee, who is the ex-daughter-in-law of the former billiard champion Michael Ferreira, for allegedly duping investors by offering to sell products like magnetic disks, herbal products and holiday schemes through fraudulent practices.
Bollywood actor Boman Irani's son Danesh was also found to be associated with the firm, following which police froze his bank account, blocking his Rs 25 lakh.
The EOW had issued look out notices against QNET founder Vijay Eswaran, former world Billiards champion Michael Ferreira and three business associates.