The aim of this research study was a comparison between sustainability leadership practices of principals at HSS level. The research objectives of this research study were a) to investigate sustainability leadership practices of principals at Higher Secondary school level b) to compare the sustainability leadership practices of principals at Public and Private sector c) To analyze the gender based sustainability leadership practices of principals. Population of this research study was all the principals, all teachers of their schools in Punjab Province. Data were collected from 200 teachers. A self -developed questionnaire was utilized for data collection. Data analysis was done through mean, standard deviation and t. test. Research findings indicate that sustainability leadership practices of principals significantly enhance effective teaching and pedagogical skills of teachers in organizations and generate pleasant and friendly environment for holistic development of learners and all other teaching learning activities.