The present research aimed to study the marking behaviour of teachers teaching in government and private schools with respect to certain personal variables. Sample consisted of 104 teachers from Government Schools and 100 teachers from Private Schools at secondary level. Mean, SD and ‘t’ test were used to analyze the data. Findings revealed no significant difference between the marking behaviour of teachers, teaching in Government and Private Schools, between the marking behaviour of TGT teachers, teaching in Government and Private Secondary Schools, between the marking behaviour of Permanent Teachers, teaching in Government and Private Secondary Schools, whereas, a significant difference was found between the marking behaviour of PGT teachers, teaching in Government and Private Secondary Schools and between the marking behaviour of Temporary Teachers, Teaching in Government and Private Secondary Schools. Key words: Examination, Mark, Educational Culture, Reliability, Validity and Marking Behaviour etc