Umno deputy president Mohamad Hasan has denied that the party is trying to play the role of 'big brother' in the Muafakat Nasional pact.<br /><br />Mohamad said Umno has been fair to PAS and gave the Islamist party enough time to accept the terms to cooperate in the Malacca state polls.<br /><br />However, he said PAS couldn't accept the terms in time.