CSI Polytechnic College is one of the leading polytechnic colleges in Tamil Nadu. It was established in 1984. It is a private college, affiliated with the Directorate of Technical Education, Chennai, and accredited by AICTE.

CSI Polytechnic College Salem Courses include Diploma in Civil Engineering, Mechanical Engineering, Automobile Engineering, Production Engineering, Electrical and Electronics Engineering, Electronics and Communication Engineering, Instrumentation and Control Engineering, Information Technology, Electronics (Robotics), and Computer Engineering.

CSI Polytechnic College Salem Campus is spread across 15 acres. It has a large auditorium, an open-air theater, a library with more than 30,000 books, indoor and outdoor game facilities, separate hostels for boys and girls, 2 canteens, and 5 computer labs.

CSI Polytechnic College Salem Placement cell works to train the student as per the demands and needs of the industry. Various training programs, workshops, and seminars are arranged for increasing employability skills. Students are also sent to large companies to undergo internships and industrial training to develop their hard skills.