The Samta Nagar Cyber Cell police booked a 57-year-old trainer and a foreign national for allegedly cheating a 40-year-old IT professional of Rs 3.98 lakh.
The police arrested the trainer, Anita Engineer, on March 5 and are looking for the other accused.
According to the police, an IT professional, Dominic Mason from the UK, befriended the victim on social media.
After a few days, he allegedly insisted she accept a MacBook as a gift.
The police said later she received a call from someone posing as an officer of an international courier firm from the Delhi Airport, who asked her to transfer Rs 28,000 customs duty for the gift.
The police said later Mason allegedly asked her to deposit R3.98 lakh in a bank account provided by him, on another pretext.
She deposited this but when he asked for Rs 3.8 lakh more, she began to doubt him.
Soon he stopped answering her calls. The victim then approached the Samta Nagar cyber police.