The eligibility criteria for Navodaya Vidyalaya Samiti (NVS) recruitment vary depending on the specific position. For example, for the post of Principal, candidates must have a Master's Degree with at least 50% marks, two years of Bachelor's of Education, and working knowledge of computers, with an age limit of 21 to 50 years. On the other hand, for the Post Graduate Teacher (PGT) position, candidates can have a two-year Master's degree with 50% marks, two years of Bachelor's of Education, and proficiency in Hindi and English in the subject, with an age limit of 21 to 40 years. Similarly, for the Trained Graduate Teacher (TGT) position, candidates need a Bachelor's degree in the concerned subject, two years of Bachelor's of Education, and an age limit of 21 to 35 years. The specific eligibility criteria for each position within NVS recruitment can be found in the official notifications released by the organization.