Hi Aspirant,

There are many courses that are there in pursuing polytechnic like:

• Diploma in Computer Science and Engineering.
• Diploma in Civil Engineering.
• Diploma in Automobile Engineering.
• Diploma in Electronics and Communication.
• Diploma in Electrical Engineering.
• Diploma in Interior Decoration.
• Diploma in Fashion Engineering.

Diploma is there in every course where there is engineering or graduation since for commerce students diploma is necessary for pursuing engineering.

Hope it helps!!