In a related case, the ED has also conducted searches and seized about Rs 3 crore, including an assortment of foreign currency, at the premises of a Delhi-based businessman in the posh Greater Kailash-I area of south Delhi.
The ED, which was probing the role of Qureshi for quite some time, took cognisance of the FIR by the CBI, which had registered a case against Singh and Qureshi recently.
The agency, in a statement, said it conducted raids at the "business and residential premises of Dharminder Singh Anand and others indulging in hawala transactions in connection with Qureshi" in the case.
It said a travel and foreign exchange firm "owned" by Anand was "indulging in large scale international hawala activities" to or from Dubai, Hong Kong, United Kingdom, USA, China, Thailand, Canada and Australia among others.
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Officials added after the registration of the new Enforcement Case Information Report (ECIR), ED's parlance for FIR, the agency is set to expand the probe in the case and delve deeper into the role of Singh, Qureshi and others. It will also probe possible connivance between them and others.
The CBI had booked its former chief Singh, Qureshi, his employee Aditya Sharma, owner of Trimax group of companies Pradeep Koneru and other unknown persons last month over alleged illegal favours being exchanged between government officials, businessmen and other private players.
The complaint was forwarded by ED Director Karnal Singh, who had alleged that in the course of investigation in a Foreign Exchange Management Act (FEMA) case against AMQ Group of companies owned by Qureshi, it transpired that the businessman was acting as a middleman for some public servants.
A P Singh, a 1974-batch IPS officer, headed the CBI between November, 2010 and November, 2012.