hi,

see tnea stands for tamil nadu engineering admissions, and it is not a exam, tnea is a counselling process where more than 500 institute of engineering institute join for counselling. counselling is based on 12th score, students from other state as well as telengana may participate in the exam process.

keam stands for kerala engineering  Architecture  entrance examination, questions is based on 12th syllabus, questions consists of physics chemistry and mathematics, there is two papers, oin paper 1, physics and chemsitry, paper 2- mathematics portion is done. each of the paper has 120 mcq questions and duration is 150 minutes for each paper. questions level is lower than jee main exams.

hope it would help.