Rizwan is the son of Dawood's younger brother, Iqbal Ibrahim Kaskar, who is currently in custody since nearly two years in extortion cases in Mumbai and Thane. He was arrested on Wednesday night from the international airport when he was trying to escape the country, he said.
Two days ago, Mumbai Police's anti-extortion cell arrested Ahmed Raza Wadharia, a close aide of Ibrahim's gang member Fahim Machmach, in an extortion case, a senior official from the crime branch said.
"During his interrogation, Rizwan Kaskar's name cropped up. Based on the information, a trap was laid and he was detained at the Mumbai international airport on Wednesday night when he was trying to escape from the country," he said.
He was placed under arrest after detailed interrogation, the official added.