Ankara today said US-based Muslim preacher Fethullah Gulen, blamed for last year's failed coup, and dozens of others would lose Turkish citizenship if they did not return home within three months. <br/><br/>A total of 130 people will be affected by the move, an interior ministry announcement published in the Official Gazette said, adding that the three-month deadline started today.<br/><br/>The government says, the abortive July coup aimed at toppling President Recep Tayyip Erdogan was engineered by an Islamic movement led by Gulen, who has denied the charges.<br/><br/>The interior ministry said the list comprised people who are being investigated by the prosecutors and whose whereabouts are not known.