GUWAHATI: The Assam Police team, investigating the 'controversial statements' made by Arshad Madani , has reportedly seized on Sunday several documents related to the public meeting where he was present. "Police have seized several documents including the booking details, invitations and other materials. Meanwhile, protests are continuing in the state demanding Madani to be arrested and booked under the National Security Act for disturbing communal harmony. "Investigation has found some variation in the statements of those who were present during the meeting. The comment triggered state-wide protests and at least four cases were lodged against him in the state..