Commemorating World Environment Day celebrations, the 2nd State-level Painting Competition for School students on the topic ‘Role of children in conservation of environment’ was organised at Shri Ravivarma Art Institute in Chamarajapuram here this morning. The competition was held in three categories — Std. 1 to Std. 4, Std. 5 to Std. 7 and Std. 8 to Std. 10.