To be eligible for the B.Tech degree program at C.R. Engineering College, Thiruvarur, candidates must have completed their higher secondary education (10+2) with a minimum aggregate of 50% in PCM (Physics, Chemistry, Mathematics) from a recognized board. Additionally, candidates must have a valid score in national or state-level entrance exams such as JEE Main, TNEA, or any other relevant entrance exam. Meeting the eligibility criteria is essential for admission to the B.Tech program at C.R. Engineering College, Thiruvarur, as it ensures that students have the necessary academic background and aptitude for pursuing engineering studies.