Hyderabad, 24/12: Top Telugu actor Allu Arjun was issued notice to appear before police on Tuesday as part of ongoing probe into the stampede during the screening of Pushpa-2 on December 4, police sources said.The actor was asked to appear at 11 am, Chikkadpally Police Inspector Raju Naik said.Allu Arjun has earlier said he would cooperate with the investigation. The notice came a day after police commissioner C V Anand released a video showing the sequence of events at the theatre.