Hello Tripti,
NEET answer key is released so that candidates can determine the marks they are likely to score. In case a candidate feels that some of the answers as displayed in the official NEET answer key are incorrect or there are any errors, they can challenge those particular answers.
Good Luck!

Hi,

Various coaching institutes will release the unofficial NEET answer key 2018 after the completion of the exam on 6 May. The link to download the NEET 2018 answer key has been provided below. This answer key will provide the solutions of the questions asked in the entrance examination. Candidates can calculate their probable marks with the help of NEET answer key. Click on the link to download the answer key - NEET Answer Key

In the unofficial NEET answer key, there are chances of mistakes to be committed. Therefore, aspirants are advised to wait for NEET 2018 Official Answer Key by CBSE for calculation of perfect scores.

Thank you.