Your eligibility for the NSET exam depends on the exam’s specific criteria, which can vary by year and state. While your 12th score is relatively low, some entrance exams may allow students with a lower percentage to appear, provided they meet other requirements. It’s best to check the latest eligibility criteria on the official NSET exam website or contact the exam authorities for clarification. Additionally, some institutions may offer preparatory programs to help improve your chances of qualifying.