In Nanjiah Lingammal Polytechnic College in Coimbatore, the major diploma courses available are Civil Engineering, Mechanical Engineering, Automobile Engineering, Electrical, and Electronics Engineering, Electronics and Communication Engineering, and Computer Engineering.
The full-time regular diploma course in Engineering will be for a period of three academic years. The course will run on semester pattern for the first, second and third year, comprising of six semesters and fifteen weeks duration each.