MUMBAI: National Investigation Agency (NIA) recently arrested two more persons, including a confidant of a retired inspector in connection with the planting of gelatine sticks outside industrialist Mukesh Ambani’s house at Carmichael Road, and subsequent murder of Scorpio car owner Mansukh Hiran. NIA arrested Santosh Shellar and Anand Jadhav, residents of Kurar village in Malad after their names cropped up in investigations. Shellar has cases of attempt to murder, assault and other crimes against him. Sources said the Tavera which NIA seized last month belonged to Shellar, a confidant of an encounter specialist. NIA secretly produced them before NIA judge Shintre on Sunday. With this the number of accused arrested touched seven.