Hello
Sibani choudhury , Nta had conducted neet 2020 on 13September. As of  now there is no any official announcement made by nta official about date of neet answer key release and neet 2020 result.According to sources neet answer key may be released in a week and the result for 2020 is expected to be released in last week of September.
Hope it will be helpful for you :)

Dear Student,

Presently,there is no any official announcement made by NTA officials about release of answer key and neet 2020 result.According to  various sources neet answer key may be released in a week and the result for 2020 is expected to be released in last week of September.For more updates check daily official website

ntaneet.nic.in

If you wish,you can check unofficial answers key of aakash institute here

https://medicine.careers360.com/articles/neet-answer-key-aakash

Hope it is helpful