To pursue a B.Tech. (Bachelor of Technology) degree at Haji Sheik Ismail Polytechnic College Nagapattinam, aspiring candidates must meet certain eligibility criteria. Firstly, candidates must have completed their higher secondary education (10+2) or its equivalent from a recognized board. They should have studied Physics, Chemistry, and Mathematics as compulsory subjects during their 10+2 education. Additionally, candidates must have obtained a minimum aggregate score of 50% in these subjects. Furthermore, candidates need to appear for relevant entrance exams, such as the Tamil Nadu Engineering Admission (TNEA) or Joint Entrance Examination (JEE) Main, and secure a valid rank. Meeting these eligibility criteria will enable candidates to pursue their B.Tech. degree at Haji Sheik Ismail Polytechnic College Nagapattinam.