Hello aspirant,

Yes, definitely you are eligible to get admission in polytechnic diploma courses after completion of your 12th because the minimum qualification required to get admission in the polytechnic diploma is on the basis of the 10th standard.

The minimum eligibility criteria for admission in polytechnic course is as follows:

Candidates must have been passed either class 10 or class 12.

Candidates should have obtained 40% marks in the qualifying examination. (Note: Minimum marks can vary from institute to institute)

Further to know more about the polytechnic course in detail, its admission, colleges, eligibility criteria, syllabus, etc, and much more further information, you can folow the below mentioned link to know more about it in detail : https://www.google.com/amp/s/engineering.careers360.com/articles/polytechnic/amp

I hope that this will help