Tollywood superstar Allu Arjun's grandmother, Allu Kanakaratnam, passed away on Saturday at 1:45 am at their Hyderabad residence. She was 94 and died of age-related ailments. Sharing a close bond, Allu Arjun, who was in Mumbai for work, rushed back and was spotted at the airport looking devastated. Her last rites will be held this afternoon at Kokapet.