AMRITSAR: A supporter of secessionist ‘Referendum 2020’, former president of All India Sikh Students Federation (AISSF) – Peer Mohammad faction, Karnail Singh Peer Mohammad joined SAD (Taksali) on Monday, kicking up a major row. In reply to a question whether he favoured a separate Sikh nation, he replied: “I am not against ‘Referendum 2020’. “The referendum is a thing of past for Mohammad since he is on a new platform and has new ideology,” Sekhwan claimed.However, Mohammad claimed that that he was still not against ‘Referendum 2020’. But I will associate with the process only after deliberations with the Sikh leaders who are pursuing the referendum. “It has already been decided,” he said..