Daniel Charles Tomil, 32, Williams Zino Odafe, 33 and Sudhir Kumar Bisht were arrested from in Janakpuri yesterday.
Two other accused Amenze Lilian Aiwekhoe, 35, and Marian Ebis, 28, were later arrested from Dwarka, said Rishi Pal, DCP (east).
Police had identified Bisht as a suspect in a case of fraud lodged by Bhupinderjit, who had alleged he was lured by the accused to part away with Rs 60 lakh to claim the amount of a mega online lottery.
Police recovered a huge quantity of incriminating material from the flat of the Nigerians at Sector 18 of Dwarka. They included 996 SIM cards of Indian mobile service providers, 18 SIM cards of Nigeria, 6 Nigerian passports, 6 passbooks of different banks, cheque books, debit and credit cards of different banks, 7 laptops, 49 mobile phones, data cards, and bluetooth devices cum pen drives, said the officer.