This document outlines regulations for the Choice Based Credit System (CBCS) at Anna University in Chennai for B.E./B.Tech. programs. It defines key terms and describes the structure of programs, including categorization of courses, credits assigned, duration, registration procedures, attendance requirements, class advisors, and class committees. Courses are divided into categories including humanities, basic sciences, engineering sciences, professional core, professional electives, open electives, and employability enhancement courses. Students must earn credits as prescribed, maintain minimum attendance of 75%, and complete the program in 8 semesters or a maximum of 14 semesters.