Hello,

CET is common entrance test. Every State organised their own entrance examination for admission in engineering, paramedical, Pharmacy, Architecture and agriculture colleges. Like for Maharashtra MHTCET examination, for Karnataka KCET examination,  for Telengana TS EAMCET examination etc. So every state have different eligibility criteria for entrance examination but almost criteria same.

You didn't mention above that which CET examination you want to give. Because you have to match the criteria then you are eligible for giving the examination. And 2nd puc or 12th passed students can appear for this examination. You can mention the state name then it will be more easy for us provide you perfect guidelines.

All the best.