Teaching effectiveness and academic environment are the two important variables that determine the quality of student output from any institution. There are large-scale variations among the polytechnics in w.r.t. teaching effectiveness and academic environment. Again, there are multiple factors that affect teaching effectiveness. The factors are related to students, teachers, teaching-learning, and the academic environment of the institution. The academic environment includes the dimensions: institutional resources and facilities, involvement of students in teaching-learning, organization of scheduled activities, interaction with faculty and other staff etc. The author carried out a study to find out any differences in teaching effectiveness and academic environment in the polytechnics of Assam. The sample of the study was final year students studying in different Government polytechnics of Assam. In the study, a total of nine Government polytechnics were targeted and a total of nineteen branches were selected by taking 50% of the total branches of each institute subject to the inclusion of at-least two branches from each institute. Fifteen final semester students were randomly selected from each branch hence, a total of 285 (two hundred eighty-five) students were included in the study. Students Evaluation of Educational Quality (SEEQ) and Academic Environment Scale (AES) tools were used for collecting the data. The study reveals that there are significant differences among the various Govt. polytechnics of Assam with respect to various dimensions of teaching effectiveness and academic environment. It was also observed that most of the dimensions of teaching effectiveness and academic environment of Assam Textile Institute had a significantly higher rating than other polytechnics wherever significant differences were observed.