dear student

 For appearing in NEET Undergraduate candidate should have completed 17 years at the time of admission or will complete the age on or before 31st December of the year 2019 for admission to the 1st year MBBS/ BDS Course. The upper age limit for NEET UG is 25 years as on the date of examination with a relaxation of 5 years for the candidates belonging to SC/ST/OBC category. 

hope this answers your question

All the best!!!