To pursue a B.Tech. (Bachelor of Technology) degree at Odaiyappa College of Engineering and Technology, Theni, candidates must meet certain eligibility criteria. Firstly, applicants should have completed their higher secondary education (10+2) or its equivalent with a minimum aggregate score of 50% in physics, chemistry, and mathematics. Additionally, they must have qualified in a recognized entrance examination, such as the Tamil Nadu Engineering Admission (TNEA) or any other relevant state/national level examination. The selection process is based on merit, with seats allocated through counseling conducted by the Directorate of Technical Education, Tamil Nadu. Meeting these criteria ensures a solid foundation for students aspiring to pursue a B.Tech. degree at Odaiyappa College of Engineering and Technology, Theni.