Ofcourse, you can give it if you are going to complete your internship before or on 31st march. Here, the year goes to the currently running session 2017.
Now, if you are behind completing this period, I would suggest you to not waste your time, money & peace of mind.
Firstly, the examination form requires you to upload an image of your provisional registration number (you can’t fool them folks).
Secondly, its not a good idea to stand in a competition with 33000 medical graduates when you are least prepared for the exam.
The NOT QUALIFIED link against your score card can really downlift your hopes.
Thirdly, its not a good idea to waste your 4500 rs 😀 especially when you aren’t earning or do not belong to sc or st.
Wait for your time but don’t waste it.
Edit 1: I wrote this answer about neet pg. A newbie changed the question.