Hello student,

As per the information in the AIIMS 2018 Entrance exam prospectus, the following is the lower age limit:

• The candidate should have attained or will attain the age of 17 years as on 31st of December of the year of the admission (2018).
• Candidates born on or after 02 January, 2002 are NOT eligible to apply.

No upper age limit is defined.

Hope this helps....