Hi Rajeev

The official NEET answer key 2019 will be released by NTA a week before the declaration of the result i.e. last week of May. Candidates will also have an option to challenge the official NEET answer key 2019 if they feel that the responses given by the authorities are not correct. With the release of official answer key of NEET 2019, the OMR sheet will also be made available which can also be challenged by the candidates.

Here challenging the anwer key refers to- In case a candidate feels that there are errors in the answers deemed correct by the authorities or they are incorrect, they can challenge those particular answers. This process of challenging the answers as given in the official answer key is referred to as ‘challenging the answer key’. NTA is likely to charge a fee of the non-refundable amount of INR 1000/- per answer for challenging. The fees will not be refunded even if NTA accepts the challenge.

Dear candidate,

As the official result was on 5th june schedule and no notice for the change till now, so the official answer key will be released in this week ending or the last week of the may month. 

No official announcement was there given by the NTA for the answer key dates. Check the official site and stay update for it 

Thank you