The CBI has arrested Harchand Singh Gill, director of a Pearls Group company, who was deported from Fiji in connection with a Rs 60,000 crore ponzi scam allegedly orchestrated by the parent firm, officials said on Tuesday. A team of CBI officials had gone to Suva in Fiji to bring Gill after being deported from the archipelago under 'Operation Trishul' and was placed under arrest after landing here, they said.