Implementation of EduSat in general and Rajiv Gandhi Project for EduSat Supported Elementary Education (RGPEEE) in particular present a great challenge in the light of optimum utilization of communication technology for improving classroom practices (teaching learning process) at elementary level. The first phase of this project focused on Sidhi district of Madhya Pradesh, India as a pilot project to supplement classroom teaching learning process and improving professional competencies of teachers. The present paper reports the effectiveness of implementation of EduSat on improving academic achievement (average achievement in curricular subjects namely; Hindi, English, EVS and Mathematics) of children of primary grade (standard III and V). Results of the study indicate no significant difference in achievement of students of schools having receive only terminals (ROTs) and no ROTs. It also suggests mechanisms to make EduSat more effective in teaching-learning process.