In June 2011 saw students of St.Mark's Sr.Sec.Public School,Meera Bagh take their zeal and vigour beyond the school premises.They participated in a five day event-GREEN HAAT-Knowledge Park at Dilli Haat from June 1 to June 5,2011.This event was organized by The Ministry of Environment and Forests along with United Nations Environment Programme(UNEP) alongwith Centre of Environment Education(CEE).