To be eligible for admission to the B.Tech program at Ponnaiyah Ramajayam College of Engineering and Technology, Thanjavur, candidates must have completed their 10+2 examination with Physics, Chemistry, and Mathematics as compulsory subjects. They must also have a valid score in the Tamil Nadu Engineering Admission (TNEA) entrance exam or any other equivalent state or national level entrance exam. Additionally, candidates must meet the minimum percentage criteria set by the college for admission. Meeting these eligibility criteria is essential for securing a seat in the B.Tech program at Ponnaiyah Ramajayam College of Engineering and Technology, Thanjavur.