Pakistan has told India that a re- investigation of the 26/11 Mumbai terror attack case was not possible as the trial was at an advanced stage. In reply to India's demand to re-investigate the 2008 case and put on trial the mastermind of assault Jamaat-ud Dawah chief Hafiz Saeed, a senior interior ministry official told PTI in Lahore that Pakistan has demanded concrete evidence against Saeed.<br/><br/>The JUD chief, who carries a bounty of 10 million dollars on his head for his role in terror activities announced by the US, is under house arrest in Lahore since January 30 under Pakistan's anti-terrorism law. Saeed was put under house arrest previously after the Mumbai terror attack which claimed 166 lives, but he was freed by a court in 2009.<br/><br/>The trial in the Mumbai attack case has been pending for the past seven years. India has urged Pakistan to complete the trial at the earliest. It has said that enough evidence has been shared with Pakistan to prosecute the accused.