The Ph.D. program in Mathematics at NIT Nagaland is designed to foster advanced research capabilities in various branches of mathematics. Students engage in in-depth study and research under the guidance of experienced faculty. The curriculum covers core areas and specialized topics, encouraging original contributions to the field. While specific accepted exams and scores are not detailed, admission typically requires a strong academic background in Mathematics, often with a Master's degree. The total tuition fee varies based on the academic year and government regulations, but it is generally subsidized for Ph.D. scholars. NIT Nagaland does not typically have a publicly disclosed ranking for specific Ph.D. programs by external agencies, but the institute itself is recognized among engineering and technology institutions in India.