Hello,

Which CET are you enquiring about, from your profile it seems you belong to Karnataka, I assume it's for KCET in case it's not do mention the details in the comment box below,

the eligibility criteria for KCET is passed 10+2 from a recognized board with physics and mathematics as compulsory subjects along with chemistry. biology, computer science, biotechnology as optional subjects along with English, those appearing in the final year can also apply provisionally, there is no upper age limit regarding this, check out our page at https://engineering.careers360.com/articles/kcet-eligibility-criteria to know more details regarding this.