Hi Jagadeesh!!!

Yes...U can appear for the AIIMS exam which will be held in 2019.

The Eligibility criteria is as follows,Hope this helps:

• Applicants must have completed 17 years at the time of admission or will complete the age on or before December 31, 2019.
• Applicants must have passed 12th class from any recognized board or university with English, Biology, Physics, and Chemistry as subjects.
• 60% marks are required for OBC& general category candidates while SC/ST/OBC candidates require 50% to apply for the exam.
• Candidates must be Indian nationals. Overseas Citizens of India and Non-Resident Indians are also eligible.
• Candidates appearing for qualifying exam are also eligible.