Tirupati: The Tirupati Wildlife Circle will be celebrating the World House Sparrow Day on March 20 at the sprawling Sri Venkateswara Zoo Park here. The Zoo Park Curator Saravanan said that in commemoration of the event, the forest department officials will conduct drawing and quiz competitions to the students of classes from 3rd to 8th classes. He sought the managements of various government and private schools to send their children for the competitions that will commence at 10.30 am. For details, the interested schools, students and parents can contact the educational instructor of the Zoo Park at 8142626883.