The present study was conducted with the higher secondary school students of 200 plus one student from different higher secondary school in Cuddalore Educational District, were selected by adopting simple random sampling technique. The researcher after obtaining prior permission from the Head of the schools and personally administered the tools Study Habit and academic achievement of these students. The present observation that rural and urban schools plus one student differ significantly with respect to their achievement in Mathematics. Further, the Higher mean scores of urban area schools students are better than rural area schools students in terms of their achievement in Mathematics. There was a good rapport between the researcher and the respondents. The time taken to complete the tool was approximately 45 minutes, that the present investigation may contribute to enhance the achievement in Mathematics. It is hoped that appropriate instructional strategy may be formulated training given to increase their study habit and to develop their achievement in Mathematics among higher secondary students. Also, the various educational commission reports insist on the development of the knowledge among students at all levels.