Dear aspirant,

Polytechnic colleges offer 3 year diploma course in engineering from various streams of engineering. These steams are as follows.

• Computer science and technology/engineering
• Electrical engineering
• Civil engineering
• Mechanical engineering
• Electronics and communication engineering
• Chemical engineering
• Biotechnology
• Information technology

Allthese courses are aimed at student with the qualification of 10th however you can also do this courses after your 12th or even after your graduation.

Hope this helps thank you.