Hello student,

You have not specified in your question as to which in which state you need to do polytechnics. Some states offering this course are

• Andhra Pradesh
• Assam
• Arunachal Pradesh
• Bihar
• Uttar Pradesh
• Jammu and Kashmir

https://www.google.com/amp/s/engineering.careers360.com/articles/polytechnic/amp

THe eligibility for these courses is generally passing 10 or 12th from a recognised board with mathematics science and English.

Admission in given on entrance basis. Different universities have different criteria for taking entrance test.

I hope this information helps you.