The number of seats available in diploma courses depends on the state, stream (like Mechanical, Civil, ECE), and institution. For example, in most government polytechnics in states like UP, Maharashtra, or Tamil Nadu, seat counts per branch range between 30–120. In AP and Telangana, SBTET manages diploma admissions and publishes a seat matrix annually. Check the SBTET website or polytechnic admission portal for the latest data. Also, note that there are seats reserved under categories like SC/ST/OBC/EWS and for girls, PWD, and sports quota.