Focuses on algebra, calculus, and trigonometry. Look for publications by Muthu Pathippagam or Srinivasa Publishers written specifically for polytechnic streams.
Covers lathe machines, drilling, and casting. Textbooks from Eagle Prakashan or Engineers Publishers in Tamil provide clear illustrations of machine parts.
4. Thermal Engineering (வெப்ப ஆற்றல் பொறியியல்) Focuses on heat, energy conversion, and IC engines.
Covers mechanics, sound, and lasers. The Tamil medium edition by Central Techno Publications is highly structured.
