Kolkata: A person was duped by three other over exchange of US dollars. The incident took place on Tuesday morning in front of Paribesh Bhavan in Salt Lake.According to police, on Tuesday morning a person named Abdul Halim, a resident of Karaya, went to Bidhannagar South police station and informed that he has been cheated of Rs one lakh. He was promised hundred notes of 20 US dollar.According to the complaint filed, Halim had met a person at Chittaranjan National Medical College called Kabil on August 30. Kabil was collecting help stating that he needs money for his father’s heart operation. On hearing this, Halim gave him a hundred rupee note. Also Read – Rain batters Kolkata, cripples normal lifeImmediately after that Bilal took out a 20 US dollar note and asked Halim to exchange it. When Halim asked as to how he got this dollar, Kabil said his father used to work abroad and earned some dollars during his tenure. He added that he has such 100 notes at home at a remote village and would want to exchange all the dollars.Following this Halim took the dollar and exchanged it from Park Street. He handed over Rs 950 to Kabil and his father at the Paribesh Bhavan crossing. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedKabil told Halim that his father’s operation will be done at a hospital in Salt Lake opposite Salt Lake stadium. He urgently needed Rs 1 Lakh for the operation and in return, he will give him his dollars.As per the deal, Halim reached Paribesh Bhavan the next day in the morning. Around 8:50 am, Kabil’s brother Musha and his father came with a packet wrapped in a towel. After the money and packet was exchanged, Musha asked Halim to verify the dollars.While Halim was unpacking it, both Musha and his father fled. On opening the packet, he found some folded newspapers and a diswashing soap bar.