What is the fine-grained topic of the following text: The age-old Hindu festival of Mahashivratri was celebrated with the usual fervor and devotion by the devotees of Sadhana Mandir in the Impact Conference Center in Global Mall in Norcross, Georgia on Monday, March 4, 2019. Only return the topic.
Celebration of Mahashivratri Festival at Sadhana Mandir in Norcross, Georgia