Bhopal: To mark World Environment Day, Pollution Control Board organised a group painting competition on the premises of TT Nagar Stadium on Friday from 8.30 am. A large number of children participated in the competition which was based on ‘prakriti aur jeevan’. The competition was divided into two categories. Students of Class 5 to 8 participated in the first category whereas students of Class 9 to 12 took part in the second category. Sending out the message of save tree and environment, the children painted their imagination on drawing sheets in group by using mix media.