The official answer key for JEE main exam is going to be released by today evening so just wait for few hours you can check official website of JEE main to get the official answer key once it is released so right now you had to wait for few hours is speculations are coming that it will be released by evening today itself however for now you can check the unofficial answer key by visiting the link given below

https://engineering.careers360.com/articles/jee-main-answer-key