According to police, Frank Ogbonnyaya, a Nigerian, and his accomplice Jyotsna Ahluwalia from Mumbai, allegedly cheated Anil Kumar from Thiruvananthapuram of a big amount by contacting him over internet and mobile phone.
The duo were brought here on Sunday and would be produced in a local court today.
The fraudsters offered financial partnership with Kumar for the export of the oil promising it would fetch him as high a profit as 25,000 USD.
In his complaint, Kumar said he had deposited Rs 1.5 crore in accounts as suggested by the Nigerian and his accomplice, who said he would soon get the ingredients and recipe for the making the "wonder drug."
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They bluffed him saying that the oil could be exported to various African countries, including Nigeria, which have a flourishing market for such products.
As Kumar failed to get any response from the duo once he deposited the amount, he lodged a complaint with the police.
Police suspected that the duo formed part of a wider hi-tech gang that would have defrauded more people in different parts of the country.